[16.0][IMP]website_sale_product_item_cart_custom_qty: add visibility management

[LuisAlejandroS]

Description:

In this PR, the visibility of the quantity configurator in the ecommerce product list (Kanban or List View) has been improved by adding a condition to the corresponding view template. The enhancement ensures that the quantity selector is only displayed when the "Quick Add to Cart" button is visible.

Cases covered with this improvement:

• Ensures the quantity configurator is only shown when the product is eligible for quick addition to the cart.
• Provides better alignment between product visibility logic and the display of interactive elements in the frontend.

Reproduction Steps:

1. Create a product in the Sales > Products menu and set the stock to 0.
2. Make sure the "Allow out of stock order" option is unchecked.
3. Enable website_sale_product_item_cart_custom_qty module.
4. In the ecommerce frontend, go to the product listing or Kanban view.
5. Verify that the "Quantity selector" is hidden when stock is zero

Solution:

The issue was addressed by modifying the view template to include the following condition:
"product._website_show_quick_add()"
This change integrates the logic for visibility of the quantity configurator with the existing _website_show_quick_add method in the product.template model that is modified in website_sale_hide_price.

By introducing this template condition, the visibility of the quantity selector is dynamically managed based on product settings, ensuring consistency and improved user experience.

Here in this example I used Office design software as the product with 0 stock:

FL-556-4816

[OCA-git-bot]

Hi @CarlosRoca13,
some modules you are maintaining are being modified, check this out!

[Pablocce]

LGTM!

[CarlosRoca13]

Thanks 😄

/ocabot merge minor

[OCA-git-bot]

Hey, thanks for contributing! Proceeding to merge this for you.
Prepared branch 16.0-ocabot-merge-pr-996-by-CarlosRoca13-bump-minor, awaiting test results.

[OCA-git-bot]

Congratulations, your PR was merged at 5b26e08. Thanks a lot for contributing to OCA. ❤️