Edit Product - Images management

[app-generator]

By default, the MAIN image is provided in all cases because comes by default from Stripe.

The template.html uses img_card as the main source of information.

    {_%  if product.img_card|first in 'http' %_}
      style="background-image: url('{{product.img_card}}');"
    {_% else %_}
      style="background-image: url('data:image/png;base64,{{product.img_card}}');"
    {_% endif %_}

On the top of the page, the MAIN image should be used in all cases.

later, on the card, if not provided the MAIN IMAGE is used.

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The bug that derives from this is visible for newly created products that have no image displayed on the top:

[app-generator]

validated. Ty @MySecondLanguage