src/vs/workbench/contrib/extensions/browser/extensionEditor.ts/NavBar/_update
class NavBar:	_update(id: string | null = this._currentId, focus?: boolean): Promise<void> {
		this._currentId = id;
		this._onChange.fire({ id, focus: !!focus });
		this.actions.forEach(a => a.checked = a.id === id);
		return Promise.resolve(undefined);
	}