Add type="button" to collapsed nav-tabs style menu toggle button in Claro

Closes #3436761

core/themes/claro/templates/navigation/menu-local-task.html.twig

@@ -26,7 +26,7 @@
 <li{{ attributes.addClass(classes) }}>
   {{ link }}
   {% if is_active and level == 'primary' %}
-    <button class="reset-appearance tabs__trigger" aria-label="{{ 'Tabs display toggle'|t }}" data-drupal-nav-tabs-trigger>
+    <button class="reset-appearance tabs__trigger" type="button" aria-label="{{ 'Tabs display toggle'|t }}" data-drupal-nav-tabs-trigger>
       {% include "@claro/../images/src/hamburger-menu.svg" %}
     </button>
   {% endif %}