Add FAB to service dashboard (#824)

* Implement #387

* Fix lint

* Upgrade to Electron 9

* Remove dependency on electron-spellchecker

* Allow multiple languages to be selected

* Fix lint

* Don't show spellchecker language chooser for macOS

* Fix _requireAuthenticatedUser throwing error on startup

* Add FAB

7 files changed, 243 insertions, 216 deletions

diff --git a/src/i18n/locales/defaultMessages.json b/src/i18n/locales/defaultMessages.json
index 244ceb521..ce78f34a3 100644
--- a/src/i18n/locales/defaultMessages.json
+++ b/src/i18n/locales/defaultMessages.json
@@ -285,104 +285,104 @@
         "defaultMessage": "!!!Locked",
         "end": {
           "column": 3,
-          "line": 22
+          "line": 23
         },
         "file": "src/components/auth/Locked.js",
         "id": "locked.headline",
         "start": {
           "column": 12,
-          "line": 19
+          "line": 20
         }
       },
       {
         "defaultMessage": "!!!Ferdi is currently locked. Please unlock Ferdi with your password to see your messages.",
         "end": {
           "column": 3,
-          "line": 26
+          "line": 27
         },
         "file": "src/components/auth/Locked.js",
         "id": "locked.info",
         "start": {
           "column": 8,
-          "line": 23
+          "line": 24
         }
       },
       {
         "defaultMessage": "!!!Unlock with Touch ID",
         "end": {
           "column": 3,
-          "line": 30
+          "line": 31
         },
         "file": "src/components/auth/Locked.js",
         "id": "locked.touchId",
         "start": {
           "column": 11,
-          "line": 27
+          "line": 28
         }
       },
       {
         "defaultMessage": "!!!unlock via Touch ID",
         "end": {
           "column": 3,
-          "line": 34
+          "line": 35
         },
         "file": "src/components/auth/Locked.js",
         "id": "locked.touchIdPrompt",
         "start": {
           "column": 17,
-          "line": 31
+          "line": 32
         }
       },
       {
         "defaultMessage": "!!!Password",
         "end": {
           "column": 3,
-          "line": 38
+          "line": 39
         },
         "file": "src/components/auth/Locked.js",
         "id": "locked.password.label",
         "start": {
           "column": 17,
-          "line": 35
+          "line": 36
         }
       },
       {
         "defaultMessage": "!!!Unlock",
         "end": {
           "column": 3,
-          "line": 42
+          "line": 43
         },
         "file": "src/components/auth/Locked.js",
         "id": "locked.submit.label",
         "start": {
           "column": 21,
-          "line": 39
+          "line": 40
         }
       },
       {
         "defaultMessage": "!!!Unlock with Password",
         "end": {
           "column": 3,
-          "line": 46
+          "line": 47
         },
         "file": "src/components/auth/Locked.js",
         "id": "locked.unlockWithPassword",
         "start": {
           "column": 22,
-          "line": 43
+          "line": 44
         }
       },
       {
         "defaultMessage": "!!!Password invalid",
         "end": {
           "column": 3,
-          "line": 50
+          "line": 51
         },
         "file": "src/components/auth/Locked.js",
         "id": "locked.invalidCredentials",
         "start": {
           "column": 22,
-          "line": 47
+          "line": 48
         }
       }
     ],
@@ -2483,364 +2483,364 @@
         "defaultMessage": "!!!Save service",
         "end": {
           "column": 3,
-          "line": 28
+          "line": 30
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.saveButton",
         "start": {
           "column": 15,
-          "line": 25
+          "line": 27
         }
       },
       {
         "defaultMessage": "!!!Delete Service",
         "end": {
           "column": 3,
-          "line": 32
+          "line": 34
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.deleteButton",
         "start": {
           "column": 17,
-          "line": 29
+          "line": 31
         }
       },
       {
         "defaultMessage": "!!!Open darkmode.css",
         "end": {
           "column": 3,
-          "line": 36
+          "line": 38
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.openDarkmodeCss",
         "start": {
           "column": 19,
-          "line": 33
+          "line": 35
         }
       },
       {
         "defaultMessage": "!!!Open user.css",
         "end": {
           "column": 3,
-          "line": 40
+          "line": 42
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.openUserCss",
         "start": {
           "column": 15,
-          "line": 37
+          "line": 39
         }
       },
       {
         "defaultMessage": "!!!Open user.js",
         "end": {
           "column": 3,
-          "line": 44
+          "line": 46
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.openUserJs",
         "start": {
           "column": 14,
-          "line": 41
+          "line": 43
         }
       },
       {
         "defaultMessage": "!!!Your user files will be inserted into the webpage so you can customize services in any way you like. User files are only stored locally and are not transferred to other computers using the same account.",
         "end": {
           "column": 3,
-          "line": 48
+          "line": 50
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.recipeFileInfo",
         "start": {
           "column": 18,
-          "line": 45
+          "line": 47
         }
       },
       {
         "defaultMessage": "!!!Available services",
         "end": {
           "column": 3,
-          "line": 52
+          "line": 54
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.availableServices",
         "start": {
           "column": 21,
-          "line": 49
+          "line": 51
         }
       },
       {
         "defaultMessage": "!!!Your services",
         "end": {
           "column": 3,
-          "line": 56
+          "line": 58
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.yourServices",
         "start": {
           "column": 16,
-          "line": 53
+          "line": 55
         }
       },
       {
         "defaultMessage": "!!!Add {name}",
         "end": {
           "column": 3,
-          "line": 60
+          "line": 62
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.addServiceHeadline",
         "start": {
           "column": 22,
-          "line": 57
+          "line": 59
         }
       },
       {
         "defaultMessage": "!!!Edit {name}",
         "end": {
           "column": 3,
-          "line": 64
+          "line": 66
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.editServiceHeadline",
         "start": {
           "column": 23,
-          "line": 61
+          "line": 63
         }
       },
       {
         "defaultMessage": "!!!Hosted",
         "end": {
           "column": 3,
-          "line": 68
+          "line": 70
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.tabHosted",
         "start": {
           "column": 13,
-          "line": 65
+          "line": 67
         }
       },
       {
         "defaultMessage": "!!!Self hosted ⭐️",
         "end": {
           "column": 3,
-          "line": 72
+          "line": 74
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.tabOnPremise",
         "start": {
           "column": 16,
-          "line": 69
+          "line": 71
         }
       },
       {
         "defaultMessage": "!!!Use the hosted {name} service.",
         "end": {
           "column": 3,
-          "line": 76
+          "line": 78
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.useHostedService",
         "start": {
           "column": 20,
-          "line": 73
+          "line": 75
         }
       },
       {
         "defaultMessage": "!!!Could not validate custom {name} server.",
         "end": {
           "column": 3,
-          "line": 80
+          "line": 82
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.customUrlValidationError",
         "start": {
           "column": 28,
-          "line": 77
+          "line": 79
         }
       },
       {
         "defaultMessage": "!!!To add self hosted services, you need a Ferdi Premium Supporter Account.",
         "end": {
           "column": 3,
-          "line": 84
+          "line": 86
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.customUrlPremiumInfo",
         "start": {
           "column": 24,
-          "line": 81
+          "line": 83
         }
       },
       {
         "defaultMessage": "!!!Upgrade your account",
         "end": {
           "column": 3,
-          "line": 88
+          "line": 90
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.customUrlUpgradeAccount",
         "start": {
           "column": 27,
-          "line": 85
+          "line": 87
         }
       },
       {
         "defaultMessage": "!!!You will be notified about all new messages in a channel, not just @username, @channel, @here, ...",
         "end": {
           "column": 3,
-          "line": 92
+          "line": 94
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.indirectMessageInfo",
         "start": {
           "column": 23,
-          "line": 89
+          "line": 91
         }
       },
       {
         "defaultMessage": "!!!When disabled, all notification sounds and audio playback are muted",
         "end": {
           "column": 3,
-          "line": 96
+          "line": 98
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.isMutedInfo",
         "start": {
           "column": 15,
-          "line": 93
+          "line": 95
         }
       },
       {
         "defaultMessage": "!!!You currently have hibernation enabled but you can disable hibernation for individual services using this option.",
         "end": {
           "column": 3,
-          "line": 100
+          "line": 102
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.disableHibernationInfo",
         "start": {
           "column": 26,
-          "line": 97
+          "line": 99
         }
       },
       {
         "defaultMessage": "!!!Notifications",
         "end": {
           "column": 3,
-          "line": 104
+          "line": 106
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.headlineNotifications",
         "start": {
           "column": 25,
-          "line": 101
+          "line": 103
         }
       },
       {
         "defaultMessage": "!!!Unread message badges",
         "end": {
           "column": 3,
-          "line": 108
+          "line": 110
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.headlineBadges",
         "start": {
           "column": 18,
-          "line": 105
+          "line": 107
         }
       },
       {
         "defaultMessage": "!!!General",
         "end": {
           "column": 3,
-          "line": 112
+          "line": 114
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.headlineGeneral",
         "start": {
           "column": 19,
-          "line": 109
+          "line": 111
         }
       },
       {
         "defaultMessage": "!!!Dark Reader Settings",
         "end": {
           "column": 3,
-          "line": 116
+          "line": 118
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.headlineDarkReaderSettings",
         "start": {
           "column": 30,
-          "line": 113
+          "line": 115
         }
       },
       {
         "defaultMessage": "!!!Delete",
         "end": {
           "column": 3,
-          "line": 120
+          "line": 122
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.iconDelete",
         "start": {
           "column": 14,
-          "line": 117
+          "line": 119
         }
       },
       {
         "defaultMessage": "!!!Drop your image, or click here",
         "end": {
           "column": 3,
-          "line": 124
+          "line": 126
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.iconUpload",
         "start": {
           "column": 14,
-          "line": 121
+          "line": 123
         }
       },
       {
         "defaultMessage": "!!!HTTP/HTTPS Proxy Settings",
         "end": {
           "column": 3,
-          "line": 128
+          "line": 130
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.proxy.headline",
         "start": {
           "column": 17,
-          "line": 125
+          "line": 127
         }
       },
       {
         "defaultMessage": "!!!Please restart Ferdi after changing proxy Settings.",
         "end": {
           "column": 3,
-          "line": 132
+          "line": 134
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.proxy.restartInfo",
         "start": {
           "column": 20,
-          "line": 129
+          "line": 131
         }
       },
       {
         "defaultMessage": "!!!Proxy settings will not be synchronized with the Ferdi servers.",
         "end": {
           "column": 3,
-          "line": 136
+          "line": 138
         },
         "file": "src/components/settings/services/EditServiceForm.js",
         "id": "settings.service.form.proxy.info",
         "start": {
           "column": 13,
-          "line": 133
+          "line": 135
         }
       }
     ],
@@ -3306,159 +3306,172 @@
         }
       },
       {
-        "defaultMessage": "!!!Cache",
+        "defaultMessage": "!!!Ferdi uses your Mac's build-in spellchecker to check for typos. If you want to change the languages the spellchecker checks for, you can do so in your Mac's System Preferences.",
         "end": {
           "column": 3,
           "line": 97
         },
         "file": "src/components/settings/settings/EditSettingsForm.js",
+        "id": "settings.app.spellCheckerLanguageInfo",
+        "start": {
+          "column": 28,
+          "line": 94
+        }
+      },
+      {
+        "defaultMessage": "!!!Cache",
+        "end": {
+          "column": 3,
+          "line": 101
+        },
+        "file": "src/components/settings/settings/EditSettingsForm.js",
         "id": "settings.app.subheadlineCache",
         "start": {
           "column": 20,
-          "line": 94
+          "line": 98
         }
       },
       {
         "defaultMessage": "!!!Ferdi cache is currently using {size} of disk space.",
         "end": {
           "column": 3,
-          "line": 101
+          "line": 105
         },
         "file": "src/components/settings/settings/EditSettingsForm.js",
         "id": "settings.app.cacheInfo",
         "start": {
           "column": 13,
-          "line": 98
+          "line": 102
         }
       },
       {
         "defaultMessage": "!!!Couldn't clear all cache",
         "end": {
           "column": 3,
-          "line": 105
+          "line": 109
         },
         "file": "src/components/settings/settings/EditSettingsForm.js",
         "id": "settings.app.cacheNotCleared",
         "start": {
           "column": 19,
-          "line": 102
+          "line": 106
         }
       },
       {
         "defaultMessage": "!!!Clear cache",
         "end": {
           "column": 3,
-          "line": 109
+          "line": 113
         },
         "file": "src/components/settings/settings/EditSettingsForm.js",
         "id": "settings.app.buttonClearAllCache",
         "start": {
           "column": 23,
-          "line": 106
+          "line": 110
         }
       },
       {
         "defaultMessage": "!!!Check for updates",
         "end": {
           "column": 3,
-          "line": 113
+          "line": 117
         },
         "file": "src/components/settings/settings/EditSettingsForm.js",
         "id": "settings.app.buttonSearchForUpdate",
         "start": {
           "column": 25,
-          "line": 110
+          "line": 114
         }
       },
       {
         "defaultMessage": "!!!Restart & install update",
         "end": {
           "column": 3,
-          "line": 117
+          "line": 121
         },
         "file": "src/components/settings/settings/EditSettingsForm.js",
         "id": "settings.app.buttonInstallUpdate",
         "start": {
           "column": 23,
-          "line": 114
+          "line": 118
         }
       },
       {
         "defaultMessage": "!!!Is searching for update",
         "end": {
           "column": 3,
-          "line": 121
+          "line": 125
         },
         "file": "src/components/settings/settings/EditSettingsForm.js",
         "id": "settings.app.updateStatusSearching",
         "start": {
           "column": 25,
-          "line": 118
+          "line": 122
         }
       },
       {
         "defaultMessage": "!!!Update available, downloading...",
         "end": {
           "column": 3,
-          "line": 125
+          "line": 129
         },
         "file": "src/components/settings/settings/EditSettingsForm.js",
         "id": "settings.app.updateStatusAvailable",
         "start": {
           "column": 25,
-          "line": 122
+          "line": 126
         }
       },
       {
         "defaultMessage": "!!!You are using the latest version of Ferdi",
         "end": {
           "column": 3,
-          "line": 129
+          "line": 133
         },
         "file": "src/components/settings/settings/EditSettingsForm.js",
         "id": "settings.app.updateStatusUpToDate",
         "start": {
           "column": 24,
-          "line": 126
+          "line": 130
         }
       },
       {
         "defaultMessage": "!!!Current version:",
         "end": {
           "column": 3,
-          "line": 133
+          "line": 137
         },
         "file": "src/components/settings/settings/EditSettingsForm.js",
         "id": "settings.app.currentVersion",
         "start": {
           "column": 18,
-          "line": 130
+          "line": 134
         }
       },
       {
         "defaultMessage": "!!!Changes require restart",
         "end": {
           "column": 3,
-          "line": 137
+          "line": 141
         },
         "file": "src/components/settings/settings/EditSettingsForm.js",
         "id": "settings.app.restartRequired",
         "start": {
           "column": 29,
-          "line": 134
+          "line": 138
         }
       },
       {
         "defaultMessage": "!!!Official translations are English & German. All other languages are community based translations.",
         "end": {
           "column": 3,
-          "line": 141
+          "line": 145
         },
         "file": "src/components/settings/settings/EditSettingsForm.js",
         "id": "settings.app.languageDisclaimer",
         "start": {
           "column": 22,
-          "line": 138
+          "line": 142
         }
       }
     ],
diff --git a/src/i18n/locales/en-US.json b/src/i18n/locales/en-US.json
index dcaa2466a..fd5c0755b 100644
--- a/src/i18n/locales/en-US.json
+++ b/src/i18n/locales/en-US.json
@@ -335,6 +335,7 @@
   "settings.app.scheduledDNDInfo": "Scheduled Do-not-Disturb allows you to define a period of time in which you do not want to get Notifications from Ferdi.",
   "settings.app.scheduledDNDTimeInfo": "Times in 24-Hour-Format. End time can be before start time (e.g. start 17:00, end 09:00) to enable Do-not-Disturb overnight.",
   "settings.app.sentryInfo": "Sending telemetry data allows us to find errors in Ferdi - we will not send any personal information like your message data! Changing this option requires you to restart Ferdi.",
+  "settings.app.spellCheckerLanguageInfo": "Ferdi uses your Mac's build-in spellchecker to check for typos. If you want to change the languages the spellchecker checks for, you can do so in your Mac's System Preferences.",
   "settings.app.subheadlineCache": "Cache",
   "settings.app.todoServerInfo": "This server will be used for the \"Ferdi Todo\" feature.",
   "settings.app.translationHelp": "Help us to translate Ferdi into your language.",
diff --git a/src/i18n/messages/src/components/auth/Locked.json b/src/i18n/messages/src/components/auth/Locked.json
index ac6091c35..ed3999114 100644
--- a/src/i18n/messages/src/components/auth/Locked.json
+++ b/src/i18n/messages/src/components/auth/Locked.json
@@ -4,11 +4,11 @@
     "defaultMessage": "!!!Locked",
     "file": "src/components/auth/Locked.js",
     "start": {
-      "line": 19,
+      "line": 20,
       "column": 12
     },
     "end": {
-      "line": 22,
+      "line": 23,
       "column": 3
     }
   },
@@ -17,11 +17,11 @@
     "defaultMessage": "!!!Ferdi is currently locked. Please unlock Ferdi with your password to see your messages.",
     "file": "src/components/auth/Locked.js",
     "start": {
-      "line": 23,
+      "line": 24,
       "column": 8
     },
     "end": {
-      "line": 26,
+      "line": 27,
       "column": 3
     }
   },
@@ -30,11 +30,11 @@
     "defaultMessage": "!!!Unlock with Touch ID",
     "file": "src/components/auth/Locked.js",
     "start": {
-      "line": 27,
+      "line": 28,
       "column": 11
     },
     "end": {
-      "line": 30,
+      "line": 31,
       "column": 3
     }
   },
@@ -43,11 +43,11 @@
     "defaultMessage": "!!!unlock via Touch ID",
     "file": "src/components/auth/Locked.js",
     "start": {
-      "line": 31,
+      "line": 32,
       "column": 17
     },
     "end": {
-      "line": 34,
+      "line": 35,
       "column": 3
     }
   },
@@ -56,11 +56,11 @@
     "defaultMessage": "!!!Password",
     "file": "src/components/auth/Locked.js",
     "start": {
-      "line": 35,
+      "line": 36,
       "column": 17
     },
     "end": {
-      "line": 38,
+      "line": 39,
       "column": 3
     }
   },
@@ -69,11 +69,11 @@
     "defaultMessage": "!!!Unlock",
     "file": "src/components/auth/Locked.js",
     "start": {
-      "line": 39,
+      "line": 40,
       "column": 21
     },
     "end": {
-      "line": 42,
+      "line": 43,
       "column": 3
     }
   },
@@ -82,11 +82,11 @@
     "defaultMessage": "!!!Unlock with Password",
     "file": "src/components/auth/Locked.js",
     "start": {
-      "line": 43,
+      "line": 44,
       "column": 22
     },
     "end": {
-      "line": 46,
+      "line": 47,
       "column": 3
     }
   },
@@ -95,11 +95,11 @@
     "defaultMessage": "!!!Password invalid",
     "file": "src/components/auth/Locked.js",
     "start": {
-      "line": 47,
+      "line": 48,
       "column": 22
     },
     "end": {
-      "line": 50,
+      "line": 51,
       "column": 3
     }
   }
diff --git a/src/i18n/messages/src/components/settings/services/EditServiceForm.json b/src/i18n/messages/src/components/settings/services/EditServiceForm.json
index 987004199..4ee427e46 100644
--- a/src/i18n/messages/src/components/settings/services/EditServiceForm.json
+++ b/src/i18n/messages/src/components/settings/services/EditServiceForm.json
@@ -4,11 +4,11 @@
     "defaultMessage": "!!!Save service",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 25,
+      "line": 27,
       "column": 15
     },
     "end": {
-      "line": 28,
+      "line": 30,
       "column": 3
     }
   },
@@ -17,11 +17,11 @@
     "defaultMessage": "!!!Delete Service",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 29,
+      "line": 31,
       "column": 17
     },
     "end": {
-      "line": 32,
+      "line": 34,
       "column": 3
     }
   },
@@ -30,11 +30,11 @@
     "defaultMessage": "!!!Open darkmode.css",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 33,
+      "line": 35,
       "column": 19
     },
     "end": {
-      "line": 36,
+      "line": 38,
       "column": 3
     }
   },
@@ -43,11 +43,11 @@
     "defaultMessage": "!!!Open user.css",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 37,
+      "line": 39,
       "column": 15
     },
     "end": {
-      "line": 40,
+      "line": 42,
       "column": 3
     }
   },
@@ -56,11 +56,11 @@
     "defaultMessage": "!!!Open user.js",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 41,
+      "line": 43,
       "column": 14
     },
     "end": {
-      "line": 44,
+      "line": 46,
       "column": 3
     }
   },
@@ -69,11 +69,11 @@
     "defaultMessage": "!!!Your user files will be inserted into the webpage so you can customize services in any way you like. User files are only stored locally and are not transferred to other computers using the same account.",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 45,
+      "line": 47,
       "column": 18
     },
     "end": {
-      "line": 48,
+      "line": 50,
       "column": 3
     }
   },
@@ -82,11 +82,11 @@
     "defaultMessage": "!!!Available services",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 49,
+      "line": 51,
       "column": 21
     },
     "end": {
-      "line": 52,
+      "line": 54,
       "column": 3
     }
   },
@@ -95,11 +95,11 @@
     "defaultMessage": "!!!Your services",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 53,
+      "line": 55,
       "column": 16
     },
     "end": {
-      "line": 56,
+      "line": 58,
       "column": 3
     }
   },
@@ -108,11 +108,11 @@
     "defaultMessage": "!!!Add {name}",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 57,
+      "line": 59,
       "column": 22
     },
     "end": {
-      "line": 60,
+      "line": 62,
       "column": 3
     }
   },
@@ -121,11 +121,11 @@
     "defaultMessage": "!!!Edit {name}",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 61,
+      "line": 63,
       "column": 23
     },
     "end": {
-      "line": 64,
+      "line": 66,
       "column": 3
     }
   },
@@ -134,11 +134,11 @@
     "defaultMessage": "!!!Hosted",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 65,
+      "line": 67,
       "column": 13
     },
     "end": {
-      "line": 68,
+      "line": 70,
       "column": 3
     }
   },
@@ -147,11 +147,11 @@
     "defaultMessage": "!!!Self hosted ⭐️",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 69,
+      "line": 71,
       "column": 16
     },
     "end": {
-      "line": 72,
+      "line": 74,
       "column": 3
     }
   },
@@ -160,11 +160,11 @@
     "defaultMessage": "!!!Use the hosted {name} service.",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 73,
+      "line": 75,
       "column": 20
     },
     "end": {
-      "line": 76,
+      "line": 78,
       "column": 3
     }
   },
@@ -173,11 +173,11 @@
     "defaultMessage": "!!!Could not validate custom {name} server.",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 77,
+      "line": 79,
       "column": 28
     },
     "end": {
-      "line": 80,
+      "line": 82,
       "column": 3
     }
   },
@@ -186,11 +186,11 @@
     "defaultMessage": "!!!To add self hosted services, you need a Ferdi Premium Supporter Account.",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 81,
+      "line": 83,
       "column": 24
     },
     "end": {
-      "line": 84,
+      "line": 86,
       "column": 3
     }
   },
@@ -199,11 +199,11 @@
     "defaultMessage": "!!!Upgrade your account",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 85,
+      "line": 87,
       "column": 27
     },
     "end": {
-      "line": 88,
+      "line": 90,
       "column": 3
     }
   },
@@ -212,11 +212,11 @@
     "defaultMessage": "!!!You will be notified about all new messages in a channel, not just @username, @channel, @here, ...",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 89,
+      "line": 91,
       "column": 23
     },
     "end": {
-      "line": 92,
+      "line": 94,
       "column": 3
     }
   },
@@ -225,11 +225,11 @@
     "defaultMessage": "!!!When disabled, all notification sounds and audio playback are muted",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 93,
+      "line": 95,
       "column": 15
     },
     "end": {
-      "line": 96,
+      "line": 98,
       "column": 3
     }
   },
@@ -238,11 +238,11 @@
     "defaultMessage": "!!!You currently have hibernation enabled but you can disable hibernation for individual services using this option.",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 97,
+      "line": 99,
       "column": 26
     },
     "end": {
-      "line": 100,
+      "line": 102,
       "column": 3
     }
   },
@@ -251,11 +251,11 @@
     "defaultMessage": "!!!Notifications",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 101,
+      "line": 103,
       "column": 25
     },
     "end": {
-      "line": 104,
+      "line": 106,
       "column": 3
     }
   },
@@ -264,11 +264,11 @@
     "defaultMessage": "!!!Unread message badges",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 105,
+      "line": 107,
       "column": 18
     },
     "end": {
-      "line": 108,
+      "line": 110,
       "column": 3
     }
   },
@@ -277,11 +277,11 @@
     "defaultMessage": "!!!General",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 109,
+      "line": 111,
       "column": 19
     },
     "end": {
-      "line": 112,
+      "line": 114,
       "column": 3
     }
   },
@@ -290,11 +290,11 @@
     "defaultMessage": "!!!Dark Reader Settings",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 113,
+      "line": 115,
       "column": 30
     },
     "end": {
-      "line": 116,
+      "line": 118,
       "column": 3
     }
   },
@@ -303,11 +303,11 @@
     "defaultMessage": "!!!Delete",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 117,
+      "line": 119,
       "column": 14
     },
     "end": {
-      "line": 120,
+      "line": 122,
       "column": 3
     }
   },
@@ -316,11 +316,11 @@
     "defaultMessage": "!!!Drop your image, or click here",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 121,
+      "line": 123,
       "column": 14
     },
     "end": {
-      "line": 124,
+      "line": 126,
       "column": 3
     }
   },
@@ -329,11 +329,11 @@
     "defaultMessage": "!!!HTTP/HTTPS Proxy Settings",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 125,
+      "line": 127,
       "column": 17
     },
     "end": {
-      "line": 128,
+      "line": 130,
       "column": 3
     }
   },
@@ -342,11 +342,11 @@
     "defaultMessage": "!!!Please restart Ferdi after changing proxy Settings.",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 129,
+      "line": 131,
       "column": 20
     },
     "end": {
-      "line": 132,
+      "line": 134,
       "column": 3
     }
   },
@@ -355,11 +355,11 @@
     "defaultMessage": "!!!Proxy settings will not be synchronized with the Ferdi servers.",
     "file": "src/components/settings/services/EditServiceForm.js",
     "start": {
-      "line": 133,
+      "line": 135,
       "column": 13
     },
     "end": {
-      "line": 136,
+      "line": 138,
       "column": 3
     }
   }
diff --git a/src/i18n/messages/src/components/settings/services/ServicesDashboard.json b/src/i18n/messages/src/components/settings/services/ServicesDashboard.json
index fa661ea2f..140d17a8b 100644
--- a/src/i18n/messages/src/components/settings/services/ServicesDashboard.json
+++ b/src/i18n/messages/src/components/settings/services/ServicesDashboard.json
@@ -4,11 +4,11 @@
     "defaultMessage": "!!!Your services",
     "file": "src/components/settings/services/ServicesDashboard.js",
     "start": {
-      "line": 15,
+      "line": 16,
       "column": 12
     },
     "end": {
-      "line": 18,
+      "line": 19,
       "column": 3
     }
   },
@@ -17,11 +17,11 @@
     "defaultMessage": "!!!Search service",
     "file": "src/components/settings/services/ServicesDashboard.js",
     "start": {
-      "line": 19,
+      "line": 20,
       "column": 17
     },
     "end": {
-      "line": 22,
+      "line": 23,
       "column": 3
     }
   },
@@ -30,11 +30,11 @@
     "defaultMessage": "!!!You haven't added any services yet.",
     "file": "src/components/settings/services/ServicesDashboard.js",
     "start": {
-      "line": 23,
+      "line": 24,
       "column": 19
     },
     "end": {
-      "line": 26,
+      "line": 27,
       "column": 3
     }
   },
@@ -43,11 +43,11 @@
     "defaultMessage": "!!!Sorry, but no service matched your search term.",
     "file": "src/components/settings/services/ServicesDashboard.js",
     "start": {
-      "line": 27,
+      "line": 28,
       "column": 18
     },
     "end": {
-      "line": 30,
+      "line": 31,
       "column": 3
     }
   },
@@ -56,11 +56,11 @@
     "defaultMessage": "!!!Discover services",
     "file": "src/components/settings/services/ServicesDashboard.js",
     "start": {
-      "line": 31,
+      "line": 32,
       "column": 20
     },
     "end": {
-      "line": 34,
+      "line": 35,
       "column": 3
     }
   },
@@ -69,11 +69,11 @@
     "defaultMessage": "!!!Could not load your services",
     "file": "src/components/settings/services/ServicesDashboard.js",
     "start": {
-      "line": 35,
+      "line": 36,
       "column": 25
     },
     "end": {
-      "line": 38,
+      "line": 39,
       "column": 3
     }
   },
@@ -82,11 +82,11 @@
     "defaultMessage": "!!!Try again",
     "file": "src/components/settings/services/ServicesDashboard.js",
     "start": {
-      "line": 39,
+      "line": 40,
       "column": 21
     },
     "end": {
-      "line": 42,
+      "line": 43,
       "column": 3
     }
   },
@@ -95,11 +95,11 @@
     "defaultMessage": "!!!Your changes have been saved",
     "file": "src/components/settings/services/ServicesDashboard.js",
     "start": {
-      "line": 43,
+      "line": 44,
       "column": 15
     },
     "end": {
-      "line": 46,
+      "line": 47,
       "column": 3
     }
   },
@@ -108,11 +108,11 @@
     "defaultMessage": "!!!Service has been deleted",
     "file": "src/components/settings/services/ServicesDashboard.js",
     "start": {
-      "line": 47,
+      "line": 48,
       "column": 15
     },
     "end": {
-      "line": 50,
+      "line": 51,
       "column": 3
     }
   }
diff --git a/src/i18n/messages/src/components/settings/settings/EditSettingsForm.json b/src/i18n/messages/src/components/settings/settings/EditSettingsForm.json
index 97360b78e..373cd78f9 100644
--- a/src/i18n/messages/src/components/settings/settings/EditSettingsForm.json
+++ b/src/i18n/messages/src/components/settings/settings/EditSettingsForm.json
@@ -234,15 +234,28 @@
     }
   },
   {
+    "id": "settings.app.spellCheckerLanguageInfo",
+    "defaultMessage": "!!!Ferdi uses your Mac's build-in spellchecker to check for typos. If you want to change the languages the spellchecker checks for, you can do so in your Mac's System Preferences.",
+    "file": "src/components/settings/settings/EditSettingsForm.js",
+    "start": {
+      "line": 94,
+      "column": 28
+    },
+    "end": {
+      "line": 97,
+      "column": 3
+    }
+  },
+  {
     "id": "settings.app.subheadlineCache",
     "defaultMessage": "!!!Cache",
     "file": "src/components/settings/settings/EditSettingsForm.js",
     "start": {
-      "line": 94,
+      "line": 98,
       "column": 20
     },
     "end": {
-      "line": 97,
+      "line": 101,
       "column": 3
     }
   },
@@ -251,11 +264,11 @@
     "defaultMessage": "!!!Ferdi cache is currently using {size} of disk space.",
     "file": "src/components/settings/settings/EditSettingsForm.js",
     "start": {
-      "line": 98,
+      "line": 102,
       "column": 13
     },
     "end": {
-      "line": 101,
+      "line": 105,
       "column": 3
     }
   },
@@ -264,11 +277,11 @@
     "defaultMessage": "!!!Couldn't clear all cache",
     "file": "src/components/settings/settings/EditSettingsForm.js",
     "start": {
-      "line": 102,
+      "line": 106,
       "column": 19
     },
     "end": {
-      "line": 105,
+      "line": 109,
       "column": 3
     }
   },
@@ -277,11 +290,11 @@
     "defaultMessage": "!!!Clear cache",
     "file": "src/components/settings/settings/EditSettingsForm.js",
     "start": {
-      "line": 106,
+      "line": 110,
       "column": 23
     },
     "end": {
-      "line": 109,
+      "line": 113,
       "column": 3
     }
   },
@@ -290,11 +303,11 @@
     "defaultMessage": "!!!Check for updates",
     "file": "src/components/settings/settings/EditSettingsForm.js",
     "start": {
-      "line": 110,
+      "line": 114,
       "column": 25
     },
     "end": {
-      "line": 113,
+      "line": 117,
       "column": 3
     }
   },
@@ -303,11 +316,11 @@
     "defaultMessage": "!!!Restart & install update",
     "file": "src/components/settings/settings/EditSettingsForm.js",
     "start": {
-      "line": 114,
+      "line": 118,
       "column": 23
     },
     "end": {
-      "line": 117,
+      "line": 121,
       "column": 3
     }
   },
@@ -316,11 +329,11 @@
     "defaultMessage": "!!!Is searching for update",
     "file": "src/components/settings/settings/EditSettingsForm.js",
     "start": {
-      "line": 118,
+      "line": 122,
       "column": 25
     },
     "end": {
-      "line": 121,
+      "line": 125,
       "column": 3
     }
   },
@@ -329,11 +342,11 @@
     "defaultMessage": "!!!Update available, downloading...",
     "file": "src/components/settings/settings/EditSettingsForm.js",
     "start": {
-      "line": 122,
+      "line": 126,
       "column": 25
     },
     "end": {
-      "line": 125,
+      "line": 129,
       "column": 3
     }
   },
@@ -342,11 +355,11 @@
     "defaultMessage": "!!!You are using the latest version of Ferdi",
     "file": "src/components/settings/settings/EditSettingsForm.js",
     "start": {
-      "line": 126,
+      "line": 130,
       "column": 24
     },
     "end": {
-      "line": 129,
+      "line": 133,
       "column": 3
     }
   },
@@ -355,11 +368,11 @@
     "defaultMessage": "!!!Current version:",
     "file": "src/components/settings/settings/EditSettingsForm.js",
     "start": {
-      "line": 130,
+      "line": 134,
       "column": 18
     },
     "end": {
-      "line": 133,
+      "line": 137,
       "column": 3
     }
   },
@@ -368,11 +381,11 @@
     "defaultMessage": "!!!Changes require restart",
     "file": "src/components/settings/settings/EditSettingsForm.js",
     "start": {
-      "line": 134,
+      "line": 138,
       "column": 29
     },
     "end": {
-      "line": 137,
+      "line": 141,
       "column": 3
     }
   },
@@ -381,11 +394,11 @@
     "defaultMessage": "!!!Official translations are English & German. All other languages are community based translations.",
     "file": "src/components/settings/settings/EditSettingsForm.js",
     "start": {
-      "line": 138,
+      "line": 142,
       "column": 22
     },
     "end": {
-      "line": 141,
+      "line": 145,
       "column": 3
     }
   }
diff --git a/src/i18n/messages/src/features/todos/components/TodosWebview.json b/src/i18n/messages/src/features/todos/components/TodosWebview.json
index 173389570..ff6e037fc 100644
--- a/src/i18n/messages/src/features/todos/components/TodosWebview.json
+++ b/src/i18n/messages/src/features/todos/components/TodosWebview.json
@@ -4,11 +4,11 @@
     "defaultMessage": "!!!Franz Todos are available to premium users now!",
     "file": "src/features/todos/components/TodosWebview.js",
     "start": {
-      "line": 27,
+      "line": 31,
       "column": 15
     },
     "end": {
-      "line": 30,
+      "line": 34,
       "column": 3
     }
   },
@@ -17,11 +17,11 @@
     "defaultMessage": "!!!Upgrade Account",
     "file": "src/features/todos/components/TodosWebview.js",
     "start": {
-      "line": 31,
+      "line": 35,
       "column": 14
     },
     "end": {
-      "line": 34,
+      "line": 38,
       "column": 3
     }
   },
@@ -30,11 +30,11 @@
     "defaultMessage": "!!!Everyone else will have to wait a little longer.",
     "file": "src/features/todos/components/TodosWebview.js",
     "start": {
-      "line": 35,
+      "line": 39,
       "column": 15
     },
     "end": {
-      "line": 38,
+      "line": 42,
       "column": 3
     }
   }