[FIX] website_sale: removing invalid product from the cart

Reproduce the issue:
- Install eCommerce app
- Publish a product to your website
- Add the product in your cart
- Unpublish/make unsellable/archive the product

The product is still in the cart and the checkout process can be done.

Cause: There is no check for invalid products before displaying the cart

This commit remove the invalid products while loading the cart.

OPW-2092541

closes odoo/odoo#40241

X-original-commit: ab9290e39c2d2b9eb6d6f9972c1c8b546263edfd
Signed-off-by: Nicolas Martinelli (nim) <nim@odoo.com>

addons/website_sale/controllers/main.py

@@ -404,6 +404,7 @@ class WebsiteSale(http.Controller):
             'suggested_products': [],
         })
         if order:
+            order.order_line.filtered(lambda l: not l.product_id.active).unlink()
             _order = order
             if not request.env.context.get('pricelist'):
                 _order = order.with_context(pricelist=order.pricelist_id.id)