added guardian login with views for their assigned childs

lib/view/pages/marianum_dates/widgets/event_list_tile.dart

@@ -1,6 +1,8 @@
 import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
 
 import '../../../../state/app/modules/marianum_dates/bloc/marianum_dates_state.dart';
+import '../../../../state/app/modules/timetable/bloc/timetable_bloc.dart';
 import '../../timetable/custom_events/custom_event_edit_dialog.dart';
 import '../data/event_formatter.dart';
 import 'event_details_sheet.dart';
@@ -89,24 +91,31 @@ class MarianumDateRow extends StatelessWidget {
                 color: theme.colorScheme.onSurfaceVariant,
               ),
             ),
-            const SizedBox(width: 4),
-            IconButton(
-              icon: _CalendarPlusIcon(
-                color: theme.colorScheme.onSurfaceVariant,
-              ),
-              tooltip: 'In Stundenplan übernehmen',
-              onPressed: () => showDialog(
-                context: context,
-                builder: (_) => CustomEventEditDialog(
-                  initialTitle: event.title,
-                  initialDescription: event.description,
-                  initialStart: event.start,
-                  initialEnd: event.end,
-                  initialAllDay: event.isAllDay,
+            // Custom events are private to the own plan; a guardian's plan
+            // belongs to the child.
+            if (context
+                .watch<TimetableBloc>()
+                .subject
+                .supportsCustomEvents) ...[
+              const SizedBox(width: 4),
+              IconButton(
+                icon: _CalendarPlusIcon(
+                  color: theme.colorScheme.onSurfaceVariant,
+                ),
+                tooltip: 'In Stundenplan übernehmen',
+                onPressed: () => showDialog(
+                  context: context,
+                  builder: (_) => CustomEventEditDialog(
+                    initialTitle: event.title,
+                    initialDescription: event.description,
+                    initialStart: event.start,
+                    initialEnd: event.end,
+                    initialAllDay: event.isAllDay,
+                  ),
+                  barrierDismissible: false,
                 ),
-                barrierDismissible: false,
               ),
-            ),
+            ],
           ],
         ),
       ),