fix(admin-ui): Fix display of alert on login screen

packages/admin-ui/src/lib/login/src/components/login/login.component.scss

@@ -171,6 +171,7 @@
 .login-error {
     max-height: 0;
     overflow: hidden;
+    display: block;
 
     &.visible {
         max-height: 46px;