Only show capabilities item when in single file mode

For #133731

No need to show this normally since project intellisense is the default

extensions/typescript-language-features/src/ui/capabilitiesStatus.ts

@@ -13,28 +13,34 @@ const localize = nls.loadMessageBundle();
 
 export class CapabilitiesStatus extends Disposable {
 
-	private readonly _statusItem: vscode.LanguageStatusItem;
+	private _statusItem?: vscode.LanguageStatusItem;
 
 	constructor(
 		private readonly _client: ITypeScriptServiceClient,
 	) {
 		super();
 
-		this._statusItem = this._register(vscode.languages.createLanguageStatusItem('typescript.capabilities', jsTsLanguageModes));
-
-		this._statusItem.name = localize('capabilitiesStatus.name', "IntelliSense Status");
-
 		this._register(this._client.onTsServerStarted(() => this.update()));
 		this._register(this._client.onDidChangeCapabilities(() => this.update()));
 
 		this.update();
 	}
 
+	public override dispose() {
+		super.dispose();
+		this._statusItem?.dispose();
+	}
+
 	private update() {
 		if (this._client.capabilities.has(ClientCapability.Semantic)) {
-			this._statusItem.text = localize('capabilitiesStatus.detail.semantic', "Project wide IntelliSense enabled");
+			this._statusItem?.dispose();
 		} else {
-			this._statusItem.text = localize('capabilitiesStatus.detail.syntaxOnly', "Single file IntelliSense");
+			if (!this._statusItem) {
+				this._statusItem = this._register(vscode.languages.createLanguageStatusItem('typescript.capabilities', jsTsLanguageModes));
+			}
+
+			this._statusItem.name = localize('capabilitiesStatus.name', "IntelliSense Status");
+			this._statusItem.text = localize('capabilitiesStatus.detail.syntaxOnly', "Using single file IntelliSense");
 		}
 	}
 }