fix(monaco-editor): avoid disposal of standalone services (#3517)

StandaloneServices is a singleton and can be initialized only once.
Subsequent initializations are noops. This has a side effect which
is inability to dispose of the services via StandaloneServices interface.
Individual services can be disposed of separately, but if one decides
to do that StandaloneServices will not able to initialize them again.

Author: char0n

src/plugins/editor-monaco/workers/apidom/apidom-mode.js

@@ -63,7 +63,15 @@ export function setupMode(defaults) {
   const protocolConverter = createProtocolConverter(undefined, true, true);
   const client = new WorkerManager(defaults);
 
+  /**
+   * StandaloneServices is a singleton and can be initialized only once.
+   * Subsequent initializations are noops. This has a side effect which
+   * is inability to dispose of the services via StandaloneServices interface.
+   * Individual services can be disposed of separately, but if one decides
+   * to do that StandaloneServices will not able to initialize them again.
+   */
   StandaloneServices.initialize({});
+
   // enable showing documentation while autocomplete suggestions are listed
   StandaloneServices.get(IStorageService).store('expandSuggestionDocs', true, 0, 0);
 
@@ -81,7 +89,6 @@ export function setupMode(defaults) {
 
   disposables.push(vscode.languages.setLanguageConfiguration(languageId, richLanguage));
   disposables.push(asDisposable(registeredProviders));
-  disposables.push(asDisposable([StandaloneServices]));
 
   return asDisposable(disposables);
 }