Make user mentions great again

app/ServiceProvider/ClassProvider.php

@@ -91,7 +91,6 @@ class ClassProvider implements ServiceProviderInterface
             'TransitionModel',
             'UserModel',
             'UserLockingModel',
-            'UserMentionModel',
             'UserNotificationModel',
             'UserNotificationFilterModel',
             'UserUnreadNotificationModel',

app/ServiceProvider/JobProvider.php

@@ -10,6 +10,7 @@ use Kanboard\Job\SubtaskEventJob;
 use Kanboard\Job\TaskEventJob;
 use Kanboard\Job\TaskFileEventJob;
 use Kanboard\Job\TaskLinkEventJob;
+use Kanboard\Job\UserMentionJob;
 use Pimple\Container;
 use Pimple\ServiceProviderInterface;
 
@@ -62,6 +63,10 @@ class JobProvider implements ServiceProviderInterface
             return new ProjectMetricJob($c);
         });
 
+        $container['userMentionJob'] = $container->factory(function ($c) {
+            return new UserMentionJob($c);
+        });
+
         return $container;
     }
 }