adjusted AuthGuard for BehaviorSubject in AccountService

src/app/account/auth.guard.ts

@@ -8,7 +8,7 @@ export class AuthGuard implements CanActivate {
               private accountService: AccountService) { }
 
   canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
-    const user = this.accountService.userName;
+    const user = this.accountService.userValue;
 
     if (user) {
       return true;