Merged in DSC-1502-saf-import-and-export-dont-find-maintenance (pull request DSpace#1311)

[GLAM-637] fix discovery configuration for batch import and export

Approved-by: Davide Negretti

Author: vNovski

src/app/shared/dso-selector/modal-wrappers/export-batch-selector/export-batch-selector.component.ts

@@ -30,7 +30,7 @@ import { FeatureID } from '../../../../core/data/feature-authorization/feature-i
   templateUrl: '../dso-selector-modal-wrapper.component.html',
 })
 export class ExportBatchSelectorComponent extends DSOSelectorModalWrapperComponent implements OnInit {
-  configuration = 'backend';
+  configuration = 'communityOrCollection';
   objectType = DSpaceObjectType.DSPACEOBJECT;
   selectorTypes = [DSpaceObjectType.COLLECTION];
   action = SelectorActionType.EXPORT_BATCH;

src/app/shared/dso-selector/modal-wrappers/import-batch-selector/import-batch-selector.component.ts

@@ -16,7 +16,7 @@ import { Observable, of } from 'rxjs';
   templateUrl: '../dso-selector-modal-wrapper.component.html',
 })
 export class ImportBatchSelectorComponent extends DSOSelectorModalWrapperComponent implements OnInit {
-  configuration = 'backend';
+  configuration = 'communityOrCollection';
   objectType = DSpaceObjectType.DSPACEOBJECT;
   selectorTypes = [DSpaceObjectType.COLLECTION];
   action = SelectorActionType.IMPORT_BATCH;