Issue #3273623 by RenatoG: Implement the new route to auto-complete in the attribute value with handleAutocompleteAttributeValues and JsonResponse with the values
Issue #3273113 by RenatoG: Notice: Undefined variable: help_text_qty_items in Drupal\block_class\Service\BlockClassHelperService->blockClassFormAlter()
Issue #3272640 by RenatoG: Implement a hook update to set the default value for qty of attributes per block by default in sites that is currently using