React Track Challenge - Ignite - @Rocketseat. Consists of finishing an hook for shopping cart.
- Should be possible add a new product to the cart
- Should be possible remove a product from the cart
- Should be possible change the quantity of a product in the cart
- Should be possible calculating the sub-total and total prices of the cart
- Should todo validations on the stock
- Should be possible display error messages
- Among others.