Urgent!! I need help setting up an expo notification system for my mobile app. The app uses react native expo js for frontend and nodejs backend with mysql database. In the frontend, when a user creates an account an expo push token is registered for the device which is then sent to the backend to be saved in the database as the token for that particular account. Notification head/body is sent to the database from a website. The app's nodejs backend constantly checks for new notifications in the database using timestamp. When there is new notif to be sent to a user, an api retrieves the user’s push token and uses that to send the notif to the device of that user. In the frontend the notification page needs to use background task (or something else) to check for and get new notifications and update the page and notif badge in the bottom tab. A main issue here is that both backend and frontend needs to constantly check for new notifications added into the database from the website which uses a completely different backend to the mobile app. Feel free to tell me of a better way to integrate the expo notification system into the app. Mock database tables will be provided. Please use your own firebase and expo account. Once you give me the source code I will integrate it into my app using my own accounts. Urgent work needs to be done in 12 hours.