UI - admin authentication and bootstrap update

ui/templates/menu.html

@@ -2,6 +2,7 @@
 	<nav class="navbar navbar-expand-md navbar-dark fixed-top bg-dark">
 		<div class="container-fluid">
 			<a class="navbar-brand" href="#">bunkerized-nginx-ui</a>
+			{% if current_user.is_authenticated %}
 			<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
 				<span class="navbar-toggler-icon"></span>
 			</button>
@@ -18,6 +19,7 @@
 					</li>
 				</ul>
 			</div>
+			{% endif %}
 		</div>
 	</nav>
 </header>