Update lineup filtering options in app.py to replace multiselect with selectbox for improved user experience

app.py

@@ -1302,7 +1302,7 @@ with tab2:
                     for col in st.session_state['working_frame'].columns:
                         if col not in excluded_cols:
                             player_names.update(st.session_state['working_frame'][col].unique())
-                    st.write(st.multiselect("Remove: ", options=['Players', 'Stacks'], default=[], key='conditional_var_1'), "if lineup ", st.multiselect("contains: ", options=['Players', 'Stacks'], default=[], key='conditional_var_2'))
+                    st.write(st.selectbox("Remove: ", options=['Players', 'Stacks'], key='conditional_var_1'), "if lineup ", st.selectbox("contains: ", options=['Players', 'Stacks'], key='conditional_var_2'))
                     if st.session_state['conditional_var_1'] == 'Players':
                         conditional_remove = st.multiselect("Remove lineups containing players:", options=sorted(list(player_names)), default=[])
                     elif st.session_state['conditional_var_1'] == 'Stacks':