Refactor position filtering to use a select box instead of multiselect, enhancing user experience by simplifying position selection.

app.py

@@ -1035,11 +1035,7 @@ def create_position_export_dict(column_name, csv_file, site_var, type_var, sport
 
 def parse_portfolio_on_mapped(portfolio, map_dict, map_key, filter_keys, low_threshold, high_threshold, column_choices):
     mapping_port = portfolio[column_choices]
-    print(mapping_port.head(10))
-    print(map_key)
-    print(map_dict[map_key])
     mapping_port = mapping_port.map(map_dict[map_key])
-    print(mapping_port.head(10))
     
     if map_key not in ['team_map', 'pos_map']:
         # Numerical mapping - filter by thresholds
@@ -2142,7 +2138,7 @@ if selected_tab == 'Manage Portfolio':
 
             with st.expander('Position Filtering'):
                 with st.form(key='position_filtering_form'):
-                    position_choice = st.multiselect("Position(s) to filter", options=[col for col in st.session_state['working_frame'].columns if col not in excluded_cols], default=[])
+                    position_choice = st.selectbox("Position to filter", options=[col for col in st.session_state['working_frame'].columns if col not in excluded_cols], index=0)
                     position_filter = st.selectbox("Filter on:", options=pos_parse_options)
                     if position_filter not in ['Position', 'Team']:
                         position_low_threshold = st.number_input("Low Threshold", value=0.0, min_value=0.0, step=1.0)