Revert "Bokeh figure - changed Y axis label"

This reverts commit 182ef2d8921154a4c40e6b9773519173b74956b3.

server.py

@@ -653,7 +653,7 @@ class LeaderboardServer:
         if category in (self.TASKS_CATEGORY_OVERALL, self.TASKS_CATEGORY_OVERALL_DETAILS):
             fig_y_axis_label = 'Overall Duel Win Score'
         else:
-            fig_y_axis_label = f"{category} Performance"
+            fig_y_axis_label = f"{category} Duel Win Score"
         
         fig = create_scatter_plot_with_curve_with_variances_named(
             fig_y_axis_label,