Add role to search form.

Author: hcayless

src/_includes/navbar.njk

@@ -27,7 +27,7 @@
           {% endif %}
         {% endfor %}
       </ul>
-      <form class="d-flex" action="https://www.google.com/search" method="get">
+      <form class="d-flex" action="https://www.google.com/search" method="get" role="search">
         <input id="query_string" name="q" class="form-control me-2" type="search" placeholder="Search" aria-label="Search" />
         <input id="sitesearch" type="hidden" name="sitesearch" value="tei-c.org" />
         <div class="btn-group">