CART EDITION AND EFFECT WHEN BUYING

Complete edition of how the cart is displayed respecting a demo to achieve the same visual way to the client. When making the purchase you see a "slide" effect and a green notification is "added to cart" but it does not block the customer and allows him to continue buying easily. + Calculate the available quantity of the products and in the quantity selector of the cart that does not allow buying more than what is available, turns red or some easy notification for the client cannot select a quantity greater than the available one and not wait to pay to find out It is available when adding the quantity.