Approval in backend

backend/dsb/basis.json

@@ -229,6 +229,8 @@
         "publish": "Publish",
         "unpublish": "Unpublish",
         "nothing_to_do": "Nothing to do. Everything is as requested already.",
-        "exhibition": "Exhibition"
+        "exhibition": "Exhibition",
+        "close": "Close",
+        "open_in_new_tab": "Open in new tab"
     }
 }