change the name of ua downloaded file

ui/ui-frontend/projects/archive-search/src/app/archive/archive-preview/archive-preview.component.ts

@@ -30,7 +30,6 @@ export class ArchivePreviewComponent  implements OnInit {
 
   }
 
-
   ngOnInit() {
 
     }
@@ -40,7 +39,7 @@ export class ArchivePreviewComponent  implements OnInit {
     let headers = new HttpHeaders().append('Content-Type', 'application/json');
     headers = headers.append('X-Access-Contract-Id', this.accessContract);
 
-   return  this.archiveService.downloadObjectFromUnit(archiveUnit['#id'], headers);
+   return  this.archiveService.downloadObjectFromUnit(archiveUnit['#id'], archiveUnit.Title, headers);
   }
 
   emitClose() {

ui/ui-frontend/projects/archive-search/src/app/archive/archive.service.ts

@@ -153,7 +153,7 @@ export class ArchiveService extends SearchService<any> {
     return pagedResult;
   }
 
-  downloadObjectFromUnit(id : string , headers?: HttpHeaders) {
+  downloadObjectFromUnit(id : string , name : string,  headers?: HttpHeaders) {
 
     return this.archiveApiService.downloadObjectFromUnit(id, headers).subscribe(
 
@@ -161,7 +161,7 @@ export class ArchiveService extends SearchService<any> {
 
         const element = document.createElement('a');
         element.href = window.URL.createObjectURL(file);
-        element.download ='item-'+id;
+        element.download =name;
         element.style.visibility = 'hidden';
         document.body.appendChild(element);
         element.click();