refactor: more lint improvements

- set parserOptions.ecmaVersion to latest and env to es2024 in eslint config
- install missing types libraries
- install eslint-plugin-sonar
- enable eslint-plugin-sonar recommended rules and declare jsx-runtime for react in eslint config
- clean up disabled lint rules which don't inflict problems anymore
- disable various lint issues and fix others

1 files changed, 4 insertions, 3 deletions

diff --git a/src/features/appearance/index.ts b/src/features/appearance/index.ts
index da75bf57b..46403275e 100644
--- a/src/features/appearance/index.ts
+++ b/src/features/appearance/index.ts
@@ -146,12 +146,13 @@ function generateServiceRibbonWidthStyle(
 ) {
   const width = Number(widthStr);
   const iconSize = Number(iconSizeStr) - iconSizeBias;
-  let fontSize = 11;
-  let tabItemHeightBias = -5;
-  let sidebarSizeBias = 22;
   const tabItemWidthBias = 3;
   const verticalStyleOffset = 29;
 
+  let fontSize: number;
+  let tabItemHeightBias: number;
+  let sidebarSizeBias: number;
+
   switch (width) {
     case 35: {
       fontSize = 9;