Tweak oxlint config & delint our code (#34301)

* Remove stale max-len disablements

* Remove stale camelCase & naming-convention disablements

* Remove stale ban-ts-comment disablements

* Remove stale no-var disablements

* Remove stale no-empty-property disablements

* Remove stale react rule disablements

* Remove stale no-constant-condition disablements

* Remove stale no-unused-vars disablements

* Remove stale disablements for disabled rules

* fixup camelcase

* Remove dead code

* Tidy code

* Tweak oxlint config

apps/desktop/src/@types/global.d.ts

@@ -10,10 +10,8 @@ import { type BrowserWindow } from "electron";
 import { type AppLocalization } from "../language-helper.js";
 
 // global type extensions need to use var for whatever reason
-/* eslint-disable no-var */
 declare global {
     var mainWindow: BrowserWindow | null;
     var appQuitting: boolean;
     var appLocalization: AppLocalization;
 }
-/* eslint-enable no-var */

apps/desktop/src/@types/matrix-seshat.d.ts

@@ -11,7 +11,6 @@ declare module "matrix-seshat" {
         passphrase?: string;
     }
 
-    /* eslint-disable camelcase */
     interface IMatrixEvent {
         event_id: string;
         sender: string;
@@ -49,7 +48,6 @@ declare module "matrix-seshat" {
             context: ISearchContext;
         }>;
     }
-    /* eslint-enable camelcase */
 
     interface ICheckpoint {
         roomId: string;

apps/desktop/src/electron-main.ts

@@ -22,7 +22,6 @@ import {
     protocol,
     desktopCapturer,
 } from "electron";
-// eslint-disable-next-line n/file-extension-in-import
 import * as Sentry from "@sentry/electron/main";
 import path, { dirname } from "node:path";
 import windowStateKeeper from "electron-window-state";

apps/desktop/src/language-helper.ts

@@ -77,7 +77,6 @@ export class AppLocalization {
 
         if (store.has(AppLocalization.STORE_KEY)) {
             const locales = store.get(AppLocalization.STORE_KEY);
-            // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
             this.setAppLocale(locales!);
         }