Approval.

backend/id/link.json

@@ -85,6 +85,7 @@
         "upload_image": "Unggah gambaran",
         "delete_image": "Hapuskan gambaran",
         "deleted_image": "Gambaran sudah dihapuskan",
-        "uploaded_image": "Gambaran sudah diunggah"
+        "uploaded_image": "Gambaran sudah diunggah",
+        "series_image": "Main image of the series"
     }
 }