Revert "#674 remove async"

This reverts commit 371b8e72f7.

src/app/shared/object-grid/grid-thumbnail/grid-thumbnail.component.ts

@@ -33,6 +33,7 @@ export class GridThumbnailComponent implements OnInit {
 
   ngOnInit(): void {
     this.src$ = new BehaviorSubject<string>(this.defaultImage);
+    // console.log('this.thumbnail', this.thumbnail);
     if (isObservable(this.thumbnail)) {
       this.thumbnail.subscribe((thumbnailRD) => {
         this.checkThumbnail(thumbnailRD.payload);

src/app/shared/object-grid/object-grid.component.ts

@@ -169,6 +169,7 @@ export class ObjectGridComponent implements OnInit {
       this._objects$).pipe(map(([nbColumns, objects]) => {
       if (hasValue(objects) && hasValue(objects.payload) && hasValue(objects.payload.page)) {
         const page = objects.payload.page;
+        console.log(page)
 
         const result = [];