Approval in backend

backend/cs/export.json

@@ -79,6 +79,7 @@
         "backup_file_exists": "Z\u00e1lo\u017en\u00ed soubor existuje",
         "backup_archive_last_generated": "Z\u00e1loha: Datum posledn\u00ed generace",
         "download": "St\u00e1hnout",
-        "date_last_object_edited": "Datum posledn\u00ed \u00fapravy objektu"
+        "date_last_object_edited": "Datum posledn\u00ed \u00fapravy objektu",
+        "xml_export": "XML export"
     }
 }