wcs: fix "forms of category" cell to directly start with its title (#28917)

combo/apps/wcs/templates/combo/wcs/forms_of_category.html

@@ -1,6 +1,6 @@
 {% load assets i18n %}
 {% block cell-content %}
-<div class="wcs-forms-of-category-{{slug}}">
+
 {% block cell-header %}
 <h2>{{ title }}</h2>
 {% get_asset "wcs:category:picture:"|add:cell.category_reference as asset %}
@@ -15,6 +15,8 @@
 </div>
 {% endif %}
 {% endblock %}
+
+<div class="wcs-forms-of-category-{{slug}}">
 <ul>
 {% for form in forms %}
 <li class="{% if form.authentication_required %}required-authentication{% endif %}