Update src/streamlit_app.py

src/streamlit_app.py

@@ -595,15 +595,7 @@ if st.session_state.execute_batch_analysis and 'json_data_for_batch' in st.sessi
                         "analysis_result": response,
                         "context": retrieved_ctx
                     }
-                    fieldnames = list(item[0].keys()) if item else []
-                    output_string_buffer = io.StringIO()
-                    writer = csv.DictWriter(
-                        output_string_buffer, 
-                        fieldnames=fieldnames, 
-                    )
-                    writer.writeheader()
-                    writer.writerows(item)
-                    csv_string = output_string_buffer.getvalue()
+                    csv_string = pd.json_normalize(item)
                         
                     with results_container: