login with email in keycloak

src/main/resources/templates/dashboard.html

@@ -30,7 +30,7 @@
 		<ul class="navbar-nav mb-2 mb-lg-0" sec:authorize="hasRole('admin')">
 			<li class="nav-item"><a th:href="@{/admin}" class="btn btn-secondary btn-icon-silent">Administration</a></li>
 		</ul>
-		<ul class="navbar-nav mb-2 mb-lg-0">
+		<ul class="navbar-nav mb-2 mb-lg-0" sec:authorize="hasAnyRole('nextcloudlink')">
 			<li class="nav-item"><a href="https://www.onkelwernerfreizeiten.de/cloud" class="btn btn-secondary btn-icon-silent" target="_blank">Nextcloud</a></li>
 		</ul>
 	</th:block>

src/main/resources/templates/registration/registration.html

@@ -98,7 +98,7 @@
 							<div id="createlogin" class="row" th:if="${#strings.isEmpty(currentUser)}">
 								<div class="col-sm-6 rowdist">
 									<span class="error"	th:each="error : ${#fields.errors('login')}">[[${error}]]<br /></span>
-									<input type="text" placeholder="Login" th:field="*{login}" th:class="${'form-control ' + (#fields.hasErrors('login') ? 'inputerror' : '')}" />
+									<input type="text" placeholder="E-Mail" th:field="*{login}" th:class="${'form-control ' + (#fields.hasErrors('login') ? 'inputerror' : '')}" />
 								</div>
 								<div class="col-sm-6 rowdist">
 									<span class="error"	th:each="error : ${#fields.errors('password')}">[[${error}]]<br /></span>