Approval in backend

backend/tl/action.json

@@ -116,6 +116,7 @@
         "exhibition_input": "Add a new exhibition",
         "series_input": "Add a new series",
         "source_input": "Add a new source",
-        "shipment_input": "Add a new shipment"
+        "shipment_input": "Add a new shipment",
+        "appointment_input": "Add a new appointment"
     }
 }