chnage the way json is downloaded

app.py

@@ -301,7 +301,7 @@ def main():
                 st.json(json_rule)
                 st.download_button(
                     label="Download JSON Rule",
-                    data=json.dumps(json_rule),
+                    data=json_rule,
                     file_name="json_rule.json",
                     mime="application/json"
                 )