Refactor init_leaderboard function to update data outputs to dataframe and improve dropdown UI

app.py

@@ -97,8 +97,7 @@ def init_leaderboard(dataframes):
         selected_subset.choices = subsets
         return update_data(subset, research_textbox, selected_columns)
 
-    def update_data(subset, search_term: Textbox, selected_columns: CheckboxGroup):
-        search_term = search_term.value
+    def update_data(subset, search_term, selected_columns: CheckboxGroup):
         selected_columns = selected_columns.value
         print(subset)
         print(search_term)