Add translations for various purposes in nodac

nodac/hu/persinst.json

@@ -57,6 +57,7 @@
         "linked_to_subordinate_actor": "Linked to subordinate actor",
         "updated_base_information_of_actor": "Updated base information of actor",
         "loaded_info_from_gnd": "Loaded additional information from GND",
-        "deleted_gnd_info": "Additional information from the GND was deleted"
+        "deleted_gnd_info": "Additional information from the GND was deleted",
+        "duplicate_entries": "dublicate entries (same person or institution)"
     }
-}
+}