Added option to sort talk favorites to top

lib/model/timetable/timetableProps.dart

@@ -29,7 +29,7 @@ class TimetableProps extends DataHolder {
   late DateTime endDate = getDate(_queryWeek.add(Duration(days: DateTime.daysPerWeek - _queryWeek.weekday)));
 
   GetTimetableResponse? _getTimetableResponse;
-  GetTimetableResponse get getTimetableResponse => _getTimetableResponse!; //TODO failed null check when no cache
+  GetTimetableResponse get getTimetableResponse => _getTimetableResponse!;
 
   GetRoomsResponse? _getRoomsResponse;
   GetRoomsResponse get getRoomsResponse => _getRoomsResponse!;