Sort by reward, then by user and finally by model name

app.py

@@ -255,7 +255,7 @@ def get_data_no_html(rl_env, path) -> pd.DataFrame:
     return data
     
 def rank_dataframe(dataframe):
-    dataframe = dataframe.sort_values(by=['Results'], ascending=False)
+    dataframe = dataframe.sort_values(by=['Results', 'User', 'Model'], ascending=False)
     if not 'Ranking' in dataframe.columns:
         dataframe.insert(0, 'Ranking', [i for i in range(1,len(dataframe)+1)])
     else: