chore(frontend-docs): fix warnings & update

src/public/app/widgets/basic_widget.js

@@ -194,7 +194,7 @@ class BasicWidget extends Component {
 
     /**
      * Indicates if the widget is enabled. Widgets are enabled by default. Generally setting this to `false` will cause the widget not to be displayed, however it will still be available on the DOM but hidden.
-     * @returns 
+     * @returns whether the widget is enabled.
      */
     isEnabled() {
         return true;