Update translations.

imports/i18n/data/en.i18n.json

@@ -1178,5 +1178,5 @@
   "storage": "Storage",
   "action": "Action",
   "board-title": "Board Title",
-  "attachmentRenamePopup-title": "Attachment Rename"
+  "attachmentRenamePopup-title": "Rename"
 }