Removed modifier_class from the container.

This should be added through Drupal attributes.

web/themes/contrib/civictheme/templates/form/container.html.twig

@@ -1,30 +1,12 @@
 {#
 /**
  * @file
- * Default theme implementation of a container used to wrap child elements.
- *
- * Used for grouped form items. Can also be used as a theme wrapper for any
- * renderable element, to surround it with a <div> and HTML attributes.
- * See \Drupal\Core\Render\Element\RenderElement for more
- * information on the #theme_wrappers render array property, and
- * \Drupal\Core\Render\Element\container for usage of the container render
- * element.
- *
- * Available variables:
- * - attributes: HTML attributes for the containing element.
- * - children: The rendered child elements of the container.
- * - has_parent: A flag to indicate that the container has one or more parent
-     containers.
- *
- * @see template_preprocess_container()
- *
- * @ingroup themeable
+ * CivicTheme implementation of a container used to wrap child elements.
  */
 #}
 {% set classes = [
+    'container',
     has_parent ? 'js-form-wrapper form-wrapper',
-    modifier_class ? modifier_class,
-    'ct-contianer',
   ] %}
 <div {{ attributes.addClass(classes) }}>
   {{ children }}