feat: enable javascript worker

demo/src/setup.ts

@@ -23,6 +23,7 @@ import getPreferencesServiceOverride from 'vscode/service-override/preferences'
 import getSnippetServiceOverride from 'vscode/service-override/snippets'
 import EditorWorker from 'monaco-editor/esm/vs/editor/editor.worker?worker'
 import JsonWorker from 'monaco-editor/esm/vs/language/json/json.worker?worker'
+import TypescriptWorker from 'monaco-editor/esm/vs/language/typescript/ts.worker?worker'
 import * as monaco from 'monaco-editor/esm/vs/editor/editor.api'
 import { createConfiguredEditor } from 'vscode/monaco'
 import 'vscode/default-extensions/theme-defaults'
@@ -39,7 +40,8 @@ interface WorkerConstructor {
 export type WorkerLoader = () => WorkerConstructor | Promise<WorkerConstructor>
 const workerLoaders: Partial<Record<string, WorkerLoader>> = {
   editorWorkerService: () => EditorWorker,
-  json: () => JsonWorker
+  json: () => JsonWorker,
+  javascript: () => TypescriptWorker
 }
 window.MonacoEnvironment = {
   getWorker: async function (moduleId, label) {