Add restricted access container on the download tab

src/app/dataset-detail/components/dataset-downloads/dataset-downloads.component.html

 <div class="downloads-container">
+  <div class="restricted-access-container" *ngIf="isSample">
+    <app-restricted-access-banner></app-restricted-access-banner>
+  </div>
   <div class="downloads" [ngClass]="{'blury': cguModalIsOpened}">
     <div class="resources-downloadable" *ngIf="hasDownloadableResources || hasStaticResources">
       <div class="resource-download" *ngFor="let downloadable of downloadableResources | keyvalue">