Implement account deletion handling and improve user feedback

- Added checks for accounts marked for deletion in signup, verification, and password reset processes.
- Updated reward and task listing to sort user-created items first.
- Enhanced user API to clear verification and reset tokens when marking accounts for deletion.
- Introduced tests for marked accounts to ensure proper handling in various scenarios.
- Updated profile and reward edit components to reflect changes in validation and data handling.

backend/api/task_api.py

@@ -63,7 +63,13 @@ def list_tasks():
         if t.get('user_id') is None and t['name'].strip().lower() in user_tasks:
             continue  # Skip default if user version exists
         filtered_tasks.append(t)
-    return jsonify({'tasks': filtered_tasks}), 200
+    
+    # Sort: user-created items first (by name), then default items (by name)
+    user_created = sorted([t for t in filtered_tasks if t.get('user_id') == user_id], key=lambda x: x['name'].lower())
+    default_items = sorted([t for t in filtered_tasks if t.get('user_id') is None], key=lambda x: x['name'].lower())
+    sorted_tasks = user_created + default_items
+    
+    return jsonify({'tasks': sorted_tasks}), 200
 
 @task_api.route('/task/<id>', methods=['DELETE'])
 def delete_task(id):