accessibility updates

- carousel updates
- mobile header image id update

web/themes/asc_bootstrap/templates/field/field--field-slides2.html.twig

@@ -36,7 +36,7 @@
  * @see template_preprocess_field()
  */
 #}
-<div id="carousel" class="carousel slide" data-ride="false" data-interval="0" style="width: 100%">
+<div id="carousel" class="carousel slide" data-ride="false" data-interval="0" style="width: 100%" aria-roledescription="carousel" role="group">
   <!-- Indicators -->
 {% if items|length > 1 %}
   <ol class="carousel-indicators">

web/themes/asc_bootstrap/templates/system/includes/_header.twig

@@ -48,7 +48,7 @@
           {% endif %}
         </a>
         <a href="/" class="dep-logo">
-          <img alt="{{ site_name }}" title="{{ site_name }}" src="/sites/default/files/logos/department-logo-mobile.svg" id="dep-logo-img" />
+          <img alt="{{ site_name }}" title="{{ site_name }}" src="/sites/default/files/logos/department-logo-mobile.svg" id="dep-logo-img-mobile" />
         </a>
       </div>
     </div>