In FO product page, move the number of items in stock before the 'Add to cart' button and before to the stock label

[marionf]

Is your feature request related to a problem?

As a visitor, I want to know easily how many products are in stock when I am in the product page.
Currently, this information is displayed in the "product details" tab of the product page and not highlighted enough.

Describe the solution you'd like

If the "Display available quantities on the product page" is enabled in BO product settings page and if the product quantity is > 0, we should display the number of items in stock before “add to cart” button and just before the stock label:
Availability: X in stock - Delivered within 48 hours (in stock here is the "label of in stock product" defined by the merchant in product settings) in green #5A9166

The stock quantity should change according to the combination selected.

Detail of specs and mockups

[Julievrz]

To avoid having to handle plural, I think we could simply write:
'In stock: 100'
or '100 in stock'

But if we want to keep the word "items" it would be better to use the new way of handling plural like with transChoice(
instead of using (s), like this:

{0} items|{1} item| {some} items

@marionf Let me know what you think ☺️

[marionf]

Good idea @Julievrz, 100 in stock seems good 👍

[AlexTechDev]

Great idea!

I will work on this.

PR cooming soon...