Fixed several issues with policy and logins

src/app/impersonation/impersonation.component.html

@@ -9,7 +9,7 @@
 			<mat-label>User to impersonate</mat-label>
 			<mat-select (selectionChange)="onChange($event)" [(value)]="impersonated">
 				<mat-option>{{getUsername()}}</mat-option>
-				@for (user of users; track user) {
+				@for (user of users; track user.id) {
 					<mat-option [value]="user.id">{{ user.name }}</mat-option>
 				}
 			</mat-select>