public function actionIndex()
 {
     // register auth token
     $this->view->registerJs("var authToken='" . Yii::$app->adminuser->identity->authToken . "';", \luya\web\View::POS_HEAD);
     $this->view->registerJs("var homeUrl='" . Url::home(true) . "';", \luya\web\View::POS_HEAD);
     // register admin js translations from module
     $this->view->registerJs('var i18n=' . Json::encode($this->module->jsTranslations), \luya\web\View::POS_HEAD);
     // Init ElementQueries after page load
     // $this->view->registerJs('setTimeout( function() {ElementQueries.listen(); ElementQueries.init();}, 1500);', \luya\web\View::POS_LOAD);
     // return and render index view file
     return $this->render('index');
 }