Update eslint to v9 (#35485)

Update eslint and all plugins. Many plugins still do not ship type
definitions so I had to add stubs. Also, I had to put a few typescript
error expectations because if some unknown error in the types.

`eslint-plugin-no-jquery` is disabled because it's not compatible with
eslint 9 flat config
(https://github.com/wikimedia/eslint-plugin-no-jquery/issues/311).

web_src/js/features/comp/EditorMarkdown.test.ts

@@ -169,7 +169,7 @@ test('EditorMarkdown', () => {
   type ValueWithCursor = string | {
     value: string;
     pos: number;
-  }
+  };
   const testInput = (input: ValueWithCursor, result: ValueWithCursor) => {
     const intputValue = typeof input === 'string' ? input : input.value;
     const inputPos = typeof input === 'string' ? intputValue.length : input.pos;