fix(form): Form with restricted acces: redirect to login form if not logged in

If form has restriced access, and user is not logged in, it should show login form with redirect.
Refer #2734

Author: Kaya84

front/formdisplay.php

@@ -52,6 +52,12 @@
       Html::displayNotFoundError();
    }
 
+   // If the form has restriced access and user is not logged in, send to login form
+   if ($form->fields['access_rights'] == PluginFormcreatorForm::ACCESS_RESTRICTED && Session::getLoginUserID() === false) {
+      Session::redirectIfNotLoggedIn();
+      exit();
+   }
+
    if (!$form->canViewForRequest()) {
       Html::displayRightError();
       exit();