Fix white screen after login

Add a nop-animation to .box-background-elements-fadeout in order to
trigger the correct redirect.

311886

eclipse-scout-core/src/login/LoginBox.less

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010-2021 BSI Business Systems Integration AG.
+ * Copyright (c) 2010-2022 BSI Business Systems Integration AG.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -84,3 +84,10 @@
   height: 18px;
   vertical-align: middle;
 }
+
+.login-body,
+.logout-body {
+  & > .box-background-elements.box-background-elements-fadeout {
+    #scout.animation(nop 0.05s);
+  }
+}