src/vs/workbench/contrib/extensions/browser/extensionsViews.ts/ServerInstalledExtensionsView/show
class ServerInstalledExtensionsView:	override async show(query: string): Promise<IPagedModel<IExtension>> {
		query = query ? query : '@installed';
		if (!ExtensionsListView.isLocalExtensionsQuery(query)) {
			query = query += ' @installed';
		}
		return super.show(query.trim());
	}