fix sort arena

app.py

@@ -209,7 +209,7 @@ def get_full_table(arena_df, model_table_df):
 
 def get_arena_table(arena_df, model_table_df):
     # sort by rating
-    arena_df = arena_df.sort_values(by=["final_ranking", "rating"], ascending=False)
+    arena_df = arena_df.sort_values(by=["final_ranking", "rating"], ascending=[True, False])
     values = []
     for i in range(len(arena_df)):
         row = []