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/reward_api.py

@@ -65,7 +65,13 @@ def list_rewards():
         if r.get('user_id') is None and r['name'].strip().lower() in user_rewards:
             continue  # Skip default if user version exists
         filtered_rewards.append(r)
-    return jsonify({'rewards': filtered_rewards}), 200
+    
+    # Sort: user-created items first (by name), then default items (by name)
+    user_created = sorted([r for r in filtered_rewards if r.get('user_id') == user_id], key=lambda x: x['name'].lower())
+    default_items = sorted([r for r in filtered_rewards if r.get('user_id') is None], key=lambda x: x['name'].lower())
+    sorted_rewards = user_created + default_items
+    
+    return jsonify({'rewards': sorted_rewards}), 200
 
 @reward_api.route('/reward/<id>', methods=['DELETE'])
 def delete_reward(id):