fix(admin-ui): Fix error when creating new Customer

packages/admin-ui/src/lib/customer/src/components/customer-detail/customer-detail.component.html

@@ -3,7 +3,7 @@
         <div class="flex clr-align-items-center">
             <vdr-entity-info [entity]="entity$ | async"></vdr-entity-info>
             <vdr-customer-status-label [customer]="entity$ | async"></vdr-customer-status-label>
-            <div class="last-login" *ngIf="(entity$ | async)?.user.lastLogin as lastLogin" [title]="lastLogin | date:'medium'">
+            <div class="last-login" *ngIf="(entity$ | async)?.user?.lastLogin as lastLogin" [title]="lastLogin | date:'medium'">
                 {{ 'customer.last-login' | translate }}: {{ lastLogin | timeAgo }}
             </div>
         </div>