Approval in backend

backend/en/action.json

@@ -113,6 +113,7 @@
         "linked_to_literature": "Linked to literature",
         "contact_input": "Add a new contact",
         "loan_input": "Add a new loan",
-        "exhibition_input": "Add a new exhibition"
+        "exhibition_input": "Add a new exhibition",
+        "series_input": "Add a new series"
     }
 }

backend/en/object_relation.json

@@ -33,6 +33,7 @@
         "select_a_museum": "Select a museum",
         "links_object_with": "Links the object with",
         "tag_or_relation": "Keyword or relation",
-        "add_exhibition": "Connect to a exhibition"
+        "add_exhibition": "Connect to a exhibition",
+        "add_series": "Connect to a series"
     }
 }