clarify filename

website/src/locales/en.json

@@ -87,7 +87,9 @@
             "button": "Info...",
             "name": "Name",
             "description": "Description",
-            "save": "Save"
+            "save": "Save",
+            "name_taken": "A file with this name already exists in the folder.",
+            "rename_failed": "The file could not be renamed."
         },
         "style": {
             "button": "Appearance...",