Add the carousel layout option to the Query Loop block#37

The newer Query Loop (Adv) block doesn’t support a carousel/slider layout like the older Post Grid/Carousel block did; requesting carousel support be added so users aren’t stuck on the legacy block just for that layout. (Migrated from featureOS: https://feedback.kadencewp.com/p/add-the-carousel-layout-option-to-the-query-loop-block)