Fix mentioned filtering (#67)

extensions/mentions/extend.php

@@ -7,15 +7,12 @@
  * LICENSE file that was distributed with this source code.
  */
 
+namespace Flarum\Mentions;
+
 use Flarum\Api\Controller;
 use Flarum\Api\Serializer\BasicPostSerializer;
 use Flarum\Api\Serializer\PostSerializer;
-use Flarum\Event\ConfigurePostsQuery;
 use Flarum\Extend;
-use Flarum\Mentions\ConfigureMentions;
-use Flarum\Mentions\FilterVisiblePosts;
-use Flarum\Mentions\Formatter;
-use Flarum\Mentions\Listener;
 use Flarum\Mentions\Notification\PostMentionedBlueprint;
 use Flarum\Mentions\Notification\UserMentionedBlueprint;
 use Flarum\Post\Event\Deleted;
@@ -23,6 +20,7 @@ use Flarum\Post\Event\Hidden;
 use Flarum\Post\Event\Posted;
 use Flarum\Post\Event\Restored;
 use Flarum\Post\Event\Revised;
+use Flarum\Post\Filter\PostFilterer;
 use Flarum\Post\Post;
 use Flarum\User\User;
 
@@ -83,6 +81,8 @@ return [
         ->listen(Restored::class, Listener\UpdateMentionsMetadataWhenVisible::class)
         ->listen(Revised::class, Listener\UpdateMentionsMetadataWhenVisible::class)
         ->listen(Hidden::class, Listener\UpdateMentionsMetadataWhenInvisible::class)
-        ->listen(Deleted::class, Listener\UpdateMentionsMetadataWhenInvisible::class)
-        ->listen(ConfigurePostsQuery::class, Listener\AddFilterByMentions::class),
+        ->listen(Deleted::class, Listener\UpdateMentionsMetadataWhenInvisible::class),
+
+    (new Extend\Filter(PostFilterer::class))
+        ->addFilter(Filter\MentionedFilter::class),
 ];