As a user, this application can be used to:
- View all pre-orders and their details, such as name, description, last order date, and pre-order pickup date
- Order a pre-order by filling in the quantity and notes
- View notifications for newly created pre-orders within the last week
- View the history of pre-orders placed and canceled
- Upload proof of payment
- View the status of payments and pickups

As a store owner, this application can be used to:
- Add pre-orders
- View all pre-orders and their details, such as name, description, last order date, and pre-order pickup date
- View the list and details of pre-orders that have been made
- See the list of who ordered, what they ordered, and their proof of payment
- Update the pickup and payment status for each customer
- View the total revenue collected
- Update the details of pre-orders
- Delete the pre-orders