Added border to crosspainter on cancelled timetable events

lib/view/pages/timetable/appointmenetComponent.dart

@@ -118,9 +118,18 @@ class _AppointmentComponentState extends State<AppointmentComponent> {
         Visibility(
           visible: widget.crossedOut,
           child: Positioned.fill(
-            child: CustomPaint(
-              painter: CrossPainter(),
-            ),
+            child: Container(
+              decoration: BoxDecoration(
+                border: Border.all(
+                  width: 2,
+                  color: Colors.red.withAlpha(200),
+                ),
+                borderRadius: const BorderRadius.all(Radius.circular(5)),
+              ),
+              child: CustomPaint(
+                painter: CrossPainter(),
+              ),
+            )
           ),
         ),
       ],