feat(main): Introduce USP block type and custom classes for HTML groups

This release adds a new "USP" (Unique Selling Proposition) block type,
allowing for flexible display of image-based selling points with optional links.

Additionally, administrators can now assign custom CSS classes to Custom HTML Groups,
enhancing layout and styling capabilities.

Includes a refinement to the FAQ accordion template to ensure questions without answers
do not display a collapse button, improving usability.

Updates module version to 1.13.0 with a database upgrade script for the new `custom_class` column.

src/Grid/Definition/Factory/CustomHtmlGroupGridDefinitionFactory.php

@@ -72,6 +72,11 @@ final class CustomHtmlGroupGridDefinitionFactory extends AbstractGridDefinitionF
                 ->setName($this->trans('Hook', [], 'Modules.Wscustomhtml.Admin'))
                 ->setOptions(['field' => 'hook_name'])
             )
+            ->add(
+                (new DataColumn('custom_class'))
+                ->setName($this->trans('Custom classes', [], 'Modules.Wscustomhtml.Admin'))
+                ->setOptions(['field' => 'custom_class'])
+            )
             ->add(
                 (new DataColumn('blocks_count'))
                 ->setName($this->trans('Blocks', [], 'Modules.Wscustomhtml.Admin'))