fix listeners for thingy

lib/pages/notifications/notifications.dart

@@ -24,9 +24,11 @@ class _NotificationsState extends State<Notifications> {
           SingleNotif notif = SingleNotif(
             content: jsonDecode(json["payload"]),
           );
-          setState(() {
-            notifs.insert(0, notif);
-          });
+          if (mounted) {
+            setState(() {
+              notifs.insert(0, notif);
+            });
+          }
         }
       });
     }

lib/partials/main_scaffold.dart

@@ -6,7 +6,6 @@ import 'package:loris/pages/notifications/notifications.dart';
 import 'package:loris/pages/timeline/timeline.dart';
 import 'package:loris/pages/settings/settings.dart';
 import '../business_logic/websocket.dart' as websocket;
-import '../pages/timeline/timeline.dart' as tl;
 
 class MainScaffold extends StatefulWidget {
   const MainScaffold({Key? key}) : super(key: key);