monitoring: Restrict the notification overview

refs #9009

modules/monitoring/application/controllers/ListController.php

@@ -295,6 +295,7 @@ class Monitoring_ListController extends Controller
             'host_display_name',
             'service_display_name'
         ));
+        $this->applyRestriction('monitoring/filter/objects', $query);
         $this->filterQuery($query);
         $this->view->notifications = $query;