user-page.component.html

<body>
    <h2>Welcome to User Page</h2>
    <div class="containerUser">
        <div class="items" *ngIf="userService.getUserById(userId) | async as user$; else loading">
            <h2 class="sellerUsername"><b>{{user$.username}}</b></h2>
        </div>
        <ng-template #loading>Loading...</ng-template>
        <div class="items"><app-star-rating userId="{{userId}}"></app-star-rating></div>
    </div>
    <app-user-gallery [userId]="userId"></app-user-gallery>
</body>