added unfocus at textfields for custon events and feedback

lib/view/pages/more/feedback/feedbackDialog.dart

@@ -68,6 +68,9 @@ class _FeedbackDialogState extends State<FeedbackDialog> {
               ),
               minLines: 4,
               maxLines: 7,
+              onTapOutside: (PointerDownEvent event) {
+                FocusScope.of(context).requestFocus(FocusNode());
+              },
             ),
           ),
           const SizedBox(height: 10),

lib/view/pages/timetable/customTimetableEventEditDialog.dart

@@ -67,6 +67,9 @@ class _AddCustomTimetableEventDialogState extends State<CustomTimetableEventEdit
                   labelText: 'Terminname',
                   border: OutlineInputBorder()
                 ),
+                onTapOutside: (PointerDownEvent event) {
+                  FocusScope.of(context).requestFocus(FocusNode());
+                },
               ),
             ),
             ListTile(
@@ -78,6 +81,9 @@ class _AddCustomTimetableEventDialogState extends State<CustomTimetableEventEdit
                   labelText: 'Beschreibung',
                   border: OutlineInputBorder()
                 ),
+                onTapOutside: (PointerDownEvent event) {
+                  FocusScope.of(context).requestFocus(FocusNode());
+                },
               ),
             ),
             const Divider(),