message: Update user-list.component.html
diff: <div class="card">
  <div class="card-content">
  <div class="card-avatar-wrapper">
  - <user-avatar [user]="user"></user-avatar>
  + <my-user-avatar [user]="user"></my-user-avatar>
  </div>
  <div class="card-info">
  <div class="card-header">
  