FEAT #11720 TIME 0:10 fix save delimiter

(cherry picked from commit 1f620f34)

src/frontend/app/administration/contact/list/export/contact-export.component.ts

@@ -215,6 +215,7 @@ export class ContactExportComponent implements OnInit {
             JSON.parse(this.localStorage.get(`exportContactFields_${this.headerService.user.id}`)).data.forEach((element: any) => {
                 this.addData(element);
             });
+            this.exportModel.delimiter = JSON.parse(this.localStorage.get(`exportContactFields_${this.headerService.user.id}`)).delimiter;
         }
     }
 }