add set_name to table

app.py

@@ -136,7 +136,8 @@ def render():
         refresh_data()
 
     df_results = get_results_dataframe()
-    leaderboard_tab.dataframe(df_results.drop(columns=['email']).sort_values('MRR@10', ascending=False))
+    leaderboard_tab.dataframe(df_results.drop(columns=['email']).sort_values(['set_name', 'MRR@10'],
+                                                                             ascending=[True, False]))
 
     # submission area
     group_email = submission_tab.text_input(label="Group email", value="")