tidy up

app.py

@@ -157,14 +157,14 @@ with gr.Blocks() as demo:
                 download_file = EXAMPLE_FILE_DICT.get(
                     submission_type, EXAMPLE_FILE_DICT["GDPa1"]
                 )
-                download_message = (
+                download_label = (
                     f"📥 Download example submission CSV for {submission_type}"
                 )
                 return (
                     submission_type,
                     download_file,
                     gr.DownloadButton(
-                        label=download_message,
+                        label=download_label,
                         value=download_file,
                         variant="secondary",
                     ),