Fix missing get_combined_icon_html reference in main page

- Fixed remaining reference to removed get_combined_icon_html function
- Now using get_openness_icon_html inline function instead
- Tested locally and app runs successfully without errors

ui_components.py

@@ -374,11 +374,13 @@ def create_leaderboard_display(
         lambda row: trophy_icon_html if row['id'] in pareto_agent_names else '',
         axis=1
     )
-    # Create mapping for Openness / tooling
-    df_view['Icon'] = df_view.apply(
-        lambda row: get_combined_icon_html(row, PRELOADED_URI_MAP),
-        axis=1  # IMPORTANT: axis=1 tells pandas to process row-by-row
-    )
+    # Create simple openness icons
+    def get_openness_icon_html(row):
+        openness_val = row.get('Openness', '')
+        uri = get_svg_as_data_uri(OPENNESS_ICON_MAP.get(openness_val, "assets/ellipse-pink.svg"))
+        return f'<img src="{uri}" alt="{openness_val}" title="{openness_val}" style="width:24px; height:24px;">'
+    
+    df_view['Icon'] = df_view.apply(get_openness_icon_html, axis=1)
 
     # Format cost columns
     for col in df_view.columns: