add default tab v2 in leaderboard

src/ui.py

@@ -165,7 +165,7 @@ def create_ui():
 
             with gr.Column(scale=2):
                 gr.Markdown("## 🏆 Results Leaderboard")
-                with gr.Tabs() as tabs:
+                with gr.Tabs(selected=DATASET_VERSIONS[-1]):
                     leaderboards = []
                     refresh_buttons = []
                     for version in DATASET_VERSIONS: