Fix missing add to wishlist button and modals backdrop

[SharakPL]

Questions	Answers
Description?	#568 prevented Add to wishlist button from loading on product list and caused error thrown in the console. thumbnail-container needs to be back in its original place. It temporary breaks the product rating, but this needs to be fixed in the productcomments module, where wrong selector is being used in js (fix: PrestaShop/productcomments#198)
Type?	bug fix
BC breaks?	no
Deprecations?	no
Fixed ticket?	-
Sponsor company	-
How to test?	-

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[SharakPL]

Further changes will be needed inside the productcomments module to avoid this empty space when no rating is available. It's meant for absolutely positioned Classic verstion and it only changes visibility.

IMO it's not the best place for it in Hummingbird. Products without rating will have either big empty space or different position of price, quantity and button and there will be layout shifts all over the page. Maybe we should keep it on the product cover like in Classic, but rather as a single star with score in it eg. 4.5/5, instead of 5 stars.

[SharakPL]

Removed whitespaces and literals, fixed modal backdrop class - should be show (BS 5) instead of in (BS 3) to see actual backdrop:

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After

[AureRita]

Hi @SharakPL

Thank you for your PR, I tested it and it seems to works as you can see :

recording.92.webm

Tested on develop and 8.1.x

Because the PR seems to works perfectly, it's QA ✔️

Thank you

[SharakPL]

Thanks @AureRita