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/codeeditor.ts

@@ -19,7 +19,7 @@ type EditorConfig = {
   trim_trailing_whitespace?: boolean,
   insert_final_newline?: boolean,
   root?: boolean,
-}
+};
 
 const languagesByFilename: Record<string, string> = {};
 const languagesByExt: Record<string, string> = {};

web_src/js/features/common-button.ts

@@ -112,7 +112,7 @@ function onHidePanelClick(el: HTMLElement, e: MouseEvent) {
 export type ElementWithAssignableProperties = {
   getAttribute: (name: string) => string | null;
   setAttribute: (name: string, value: string) => void;
-} & Record<string, any>
+} & Record<string, any>;
 
 export function assignElementProperty(el: ElementWithAssignableProperties, kebabName: string, val: string) {
   const camelizedName = camelize(kebabName);

web_src/js/features/comp/ConfirmModal.ts

@@ -9,7 +9,7 @@ type ConfirmModalOptions = {
   header?: string;
   content?: string;
   confirmButtonColor?: 'primary' | 'red' | 'green' | 'blue';
-}
+};
 
 export function createConfirmModal({header = '', content = '', confirmButtonColor = 'primary'}:ConfirmModalOptions = {}): HTMLElement {
   const headerHtml = header ? html`<div class="header">${header}</div>` : '';

web_src/js/features/comp/Cropper.ts

@@ -4,7 +4,7 @@ type CropperOpts = {
   container: HTMLElement,
   imageSource: HTMLImageElement,
   fileInput: HTMLInputElement,
-}
+};
 
 async function initCompCropper({container, fileInput, imageSource}: CropperOpts) {
   const {default: Cropper} = await import(/* webpackChunkName: "cropperjs" */'cropperjs');

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;

web_src/js/features/comp/EditorMarkdown.ts

@@ -18,7 +18,7 @@ type TextareaValueSelection = {
   value: string;
   selStart: number;
   selEnd: number;
-}
+};
 
 function handleIndentSelection(textarea: HTMLTextAreaElement, e: KeyboardEvent) {
   const selStart = textarea.selectionStart;
@@ -65,14 +65,14 @@ function handleIndentSelection(textarea: HTMLTextAreaElement, e: KeyboardEvent)
 type MarkdownHandleIndentionResult = {
   handled: boolean;
   valueSelection?: TextareaValueSelection;
-}
+};
 
 type TextLinesBuffer = {
   lines: string[];
   lengthBeforePosLine: number;
   posLineIndex: number;
   inlinePos: number
-}
+};
 
 export function textareaSplitLines(value: string, pos: number): TextLinesBuffer {
   const lines = value.split('\n');

web_src/js/features/repo-issue.ts

@@ -64,7 +64,7 @@ function initRepoIssueLabelFilter(elDropdown: HTMLElement) {
     selectedLabelIds.add(`${Math.abs(parseInt(id))}`); // "labels" contains negative ids, which are excluded
   }
 
-  const excludeLabel = (e: MouseEvent|KeyboardEvent, item: Element) => {
+  const excludeLabel = (e: MouseEvent | KeyboardEvent, item: Element) => {
     e.preventDefault();
     e.stopPropagation();
     const labelId = item.getAttribute('data-label-id');