Add restricted access banner on the download tab

package-lock.json

 {
   "name": "webapp",
-  "version": "2.6.12",
+  "version": "2.6.13",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {

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">