Crossed out timetable objects when no teacher is assigned

lib/view/pages/timetable/appointmenetComponent.dart

@@ -2,7 +2,6 @@
 import 'package:flutter/material.dart';
 import 'package:syncfusion_flutter_calendar/calendar.dart';
 
-import '../../../api/webuntis/queries/getTimetable/getTimetableResponse.dart';
 import 'CrossPainter.dart';
 
 class AppointmentComponent extends StatefulWidget {
@@ -117,7 +116,7 @@ class _AppointmentComponentState extends State<AppointmentComponent> {
           ],
         ),
         Visibility(
-          visible: (meeting.id as GetTimetableResponseObject).code == "cancelled",
+          visible: widget.crossedOut,
           child: Positioned.fill(
             child: CustomPaint(
               painter: CrossPainter(),