message: Update advanced.html
  Fix for issue - Can't save changes in config
diff: <li class="logout-button mdc-list-item" role="menuitem" tabindex="0">Logout</li>
  </ul>
  </div>
  -<form id="advanced-config" action="/config" method="post">
  +<form id="advanced-config" action="/config/advanced" method="post">
  <div class="config-editor mdc-elevation--z4">
  <textarea id="config-code" name="config">{{config}}</textarea>
  </div>
  