USER STORY: Shopping Cart

[DiarmuidHenry]

As a user, I can add items to my cart (including specific options e.g. size or colour) so that I can purchase exactly the products I want.

Acceptance Criteria:

• [x] Users can add products to their cart from the product detail page.
• [x] Users can select different options (e.g., size, color) before adding the product to the cart.
• [x] The cart shows the selected product options and quantities.
• [x] Users can view the total price in the cart, including any delivery charges.