Add routine management features for child and parent views

- Implemented routine child-mode flow tests to ensure proper functionality of routine assignment and task completion.
- Created notification tests for parent view to verify routine completion notifications for children.
- Developed ChildRoutineOverlay component for displaying routine tasks and handling user interactions.
- Added RoutineApproveDialog component for approving or rejecting completed routines.
- Created unit tests for ChildRoutineOverlay and RoutineEditView components to ensure correct behavior and rendering.
- Enhanced RoutineEditView with proper handling of task addition and form submission.

Co-authored-by: Copilot <copilot@github.com>

frontend/src/components/notification/NotificationView.vue

@@ -20,7 +20,9 @@
             <span>{{ item.child_name }}</span>
           </div>
           <span class="requested-text">{{
-            item.entity_type === 'chore' ? 'completed' : 'requested'
+            item.entity_type === 'chore' || item.entity_type === 'routine'
+              ? 'completed'
+              : 'requested'
           }}</span>
           <div class="reward-info">
             <span>{{ item.entity_name }}</span>