Shopping Cart Drawer - style & functionality

[nicanthoni]

• Whole component needs a stylistic makeover
• Add functionality to click the 'x' button by the item to remove it from cart
• Add functionality to increase quantity of specific item in cart

[nicanthoni]

implemented shopping cart drawer delete button - works, with alerts working in unison.

However, if the item deleted is the only item in the cart, the alert does not show. Working in progress.