added basic spring boot security

src/main/resources/templates/template.html

@@ -28,11 +28,14 @@
 			<ul layout:fragment="header"></ul>
 			<ul class="nav navbar-nav ms-auto">
 				<li class="nav-item">
-				  <a href="https://gitlab.com/jottyfan/bico/-/issues" class="btn btn-outline-secondary" target="_blank" th:text="${'v' + @manifestBean.getVersion()}"></a>
+				  <a href="https://git.jottyfan.de/church/BiCO" class="btn btn-outline-secondary" target="_blank" th:text="${'v' + @manifestBean.getVersion()}"></a>
 				</li>
 				<li class="nav-item">
 					<a href="#" class="btn btn-outline-secondary" onclick="toggleDarkMode()"><i class="bi bi-moon"></i></a>
 				</li>
+				<li class="nav-item">
+					<a th:href="@{/logout}" class="btn btn-outline-secondary">abmelden</a>
+				</li>
 			</ul>
 		</div>
 	</nav>