chore: upgrade used node and pnpm version (#1433)

- upgrade node and pnpm version in `engines`, `volta` and `packageManager` config
- upgrade `@types/node` to v20
- remove `react-loader` overrides from `peerDependencyRules.allowedVersions`
- remove `@npmcli/move-file` 2.0.1 from `allowedDeprecatedVersions`
- update node image to 20.9.0 in `Dockerfile`
- update required system dependencies in `CONTRIBUTING.md`
- update node version to 20.9.0 in `.nvmrc`
- correct type definitions for `setInterval` usage in `WebviewCrashHandler` and `AppStore` necessary due to `@types/node` upgrade

2 files changed, 3 insertions, 3 deletions

diff --git a/src/components/services/content/WebviewCrashHandler.tsx b/src/components/services/content/WebviewCrashHandler.tsx
index e9b17e8aa..91c9cf927 100644
--- a/src/components/services/content/WebviewCrashHandler.tsx
+++ b/src/components/services/content/WebviewCrashHandler.tsx
@@ -36,7 +36,7 @@ interface IState {
 
 @observer
 class WebviewCrashHandler extends Component<IProps, IState> {
-  countdownInterval: NodeJS.Timer | undefined;
+  countdownInterval: NodeJS.Timeout | undefined;
 
   countdownIntervalTimeout = ms('1s');
 
@@ -58,7 +58,7 @@ class WebviewCrashHandler extends Component<IProps, IState> {
 
       if (this.state.countdown <= 0) {
         reload();
-        clearInterval(this.countdownInterval!);
+        clearInterval(this.countdownInterval);
       }
     }, this.countdownIntervalTimeout);
   }
diff --git a/src/stores/AppStore.ts b/src/stores/AppStore.ts
index df8c17c01..ab98ca89c 100644
--- a/src/stores/AppStore.ts
+++ b/src/stores/AppStore.ts
@@ -128,7 +128,7 @@ export default class AppStore extends TypedStore {
 
   dictionaries = [];
 
-  fetchDataInterval: null | NodeJS.Timer = null;
+  fetchDataInterval: NodeJS.Timeout | null = null;
 
   @observable downloads: Download[] = [];