feat: add parent PIN setup functionality and email notifications

- Implemented User model updates to include PIN and related fields.
- Created email sender utility for sending verification and reset emails.
- Developed ParentPinSetup component for setting up a parent PIN with verification code.
- Enhanced UserProfile and EntityEditForm components to support new features.
- Updated routing to include PIN setup and authentication checks.
- Added styles for new components and improved existing styles for consistency.
- Introduced loading states and error handling in various components.

backend/main.py

@@ -4,13 +4,15 @@ import sys
 from flask import Flask, request, jsonify
 from flask_cors import CORS
 
-from api.auth_api import auth_api, mail
+from api.auth_api import auth_api
 from api.child_api import child_api
 from api.image_api import image_api
 from api.reward_api import reward_api
 from api.task_api import task_api
 from api.user_api import user_api
 from config.version import get_full_version
+
+from backend.utils.email_instance import email_sender
 from db.default import initializeImages, createDefaultTasks, createDefaultRewards
 from events.broadcaster import Broadcaster
 from events.sse import sse_response_for_user, send_to_user
@@ -44,10 +46,11 @@ app.config.update(
     FRONTEND_URL='https://localhost:5173',  # Adjust as needed
     SECRET_KEY='supersecretkey'  # Replace with a secure key in production
 )
-mail.init_app(app)
 
 CORS(app)
 
+email_sender.init_app(app)
+
 @app.route("/version")
 def api_version():
     return jsonify({"version": get_full_version()})
@@ -84,6 +87,5 @@ createDefaultTasks()
 createDefaultRewards()
 start_background_threads()
 
-
 if __name__ == '__main__':
     app.run(debug=False, host='0.0.0.0', port=5000, threaded=True)