Refactor download button data handling in app.py to use convert_df_to_csv for ROO exports. This change improves data export functionality for both Regular and Portfolio Manager options, ensuring consistent file formatting.

app.py

@@ -530,14 +530,14 @@ with tab2:
     with reg_dl_col:
         st.download_button(
             label="Export ROO (Regular)",
-            data=convert_df(player_roo_disp),
+            data=convert_df_to_csv(player_roo_disp),
             file_name='MLB_ROO_export.csv',
             mime='text/csv',
         )
     with pm_dl_col:
         st.download_button(
             label="Export ROO (Portfolio Manager)",
-            data=convert_df(pm_export),
+            data=convert_df_to_csv(pm_export),
             file_name='MLB_ROO_export.csv',
             mime='text/csv',
         )