add logout button

src/application/view/common/header/user.phtml

@@ -25,6 +25,7 @@
           <small><?php echo sprintf(_('Network status: %s users in %s blocks'), $usersTotal, $blocksTotal) ?></small>
           <a class="c-1 ml-16" href="https://github.com/twisterarmy/cloud-server" target="_blank"><i class="bi bi-github"></i></a>
           <a class="c-1 ml-16" href="https://github.com/twisterarmy/cloud-server/issues" target="_blank"><i class="bi bi-question-circle"></i></a>
+          <a class="c-1 ml-16" href="logout" title="<?php echo _('Exit') ?>"><i class="bi bi-box-arrow-right"></i></a>
         </div>
       </div>
     </div>