Add push notification to remind users when groceries are about to expire

[jonathanmei312]

No description provided.

[jonathanmei312]

Integrate a push notification service to send reminders about expiring groceries. Set up the app to track expiration dates and send timely notifications to users.
If notifications become overwhelming, allow users to customize or turn off reminders. Later, add features like smart expiration date predictions based on purchase history.