get notification also for UserInterface

This will allow notification for admin

Templating/UI/NotificationCounterInterface.php

@@ -17,7 +17,7 @@
  */
 namespace Chill\MainBundle\Templating\UI;
 
-use Chill\MainBundle\Entity\User;
+use Symfony\Component\Security\Core\User\UserInterface;
 
 /**
  *
@@ -28,5 +28,5 @@ interface NotificationCounterInterface
     /**
      * Add a number of notification
      */
-    public function addNotification(User $u): int;
+    public function addNotification(UserInterface $u): int;
 }