public async void UpdateProductInCart(Product product, int newQuantity)
{
BasketItem basketItem = await PetShopDatabase.GetProductFromCart(product.Id);
basketItem.Quantity = newQuantity;
PetShopDatabase.UpdateInCart(basketItem);
}
public async void RemoveProductFromCart(Product product)
{
BasketItem basketItem = await PetShopDatabase.GetProductFromCart(product.Id);
PetShopDatabase.RemoveFromCart(basketItem);
}