Edit Items in Cart

[Sahar-yahya]

User Stories:

As a customer, I want to be able to edit items in my cart before proceeding with the order.
As an admin, I want to be able to edit existing items in the menu to update their details.

Acceptance Criteria:

A customer can adjust the quantity of items already in his cart.
A customer can remove items from my cart if I no longer want to order them.
The total price in the cart updates dynamically as I make changes to item quantities.

An admin can access the admin panel of the app.
An admin has the necessary permissions to edit items in the menu.
An admin can modify details such as name, description, price, and image for an existing item.
Changes made to the item in the admin panel reflect immediately in the user-facing menu.