Extract new Flarum\User namespace

src/Api/Serializer/DiscussionSerializer.php

@@ -11,18 +11,18 @@
 
 namespace Flarum\Api\Serializer;
 
-use Flarum\Core\Access\Gate;
+use Flarum\User\Gate;
 use Flarum\Core\Discussion;
 
 class DiscussionSerializer extends BasicDiscussionSerializer
 {
     /**
-     * @var Gate
+     * @var \Flarum\User\Gate
      */
     protected $gate;
 
     /**
-     * @param \Flarum\Core\Access\Gate $gate
+     * @param \Flarum\User\Gate $gate
      */
     public function __construct(Gate $gate)
     {