Update selection mode in Handbuilder tab of Streamlit app from "single" to "single-row" for improved clarity in player selection functionality.

src/streamlit_app.py

@@ -621,7 +621,7 @@ if selected_tab == 'Handbuilder':
         player_select_event = st.dataframe(
             st.session_state['player_select_df'].style.background_gradient(axis=0).background_gradient(cmap='RdYlGn').background_gradient(cmap='RdYlGn_r', subset=['Salary', 'Own']).format(precision=2),
             on_select="rerun",
-            selection_mode="single",  # Single row selection
+            selection_mode="single-row",  # Single row selection
             key="player_select_dataframe",
             height=500,
             hide_index=True
@@ -701,7 +701,7 @@ if selected_tab == 'Handbuilder':
         lineup_select_event = st.dataframe(
             st.session_state['lineup_display_df'].style.background_gradient(axis=0).background_gradient(cmap='RdYlGn', subset=['Median']).background_gradient(cmap='RdYlGn_r', subset=['Salary', 'Own']).format(precision=2),
             on_select="rerun",
-            selection_mode="single",  # Single row selection
+            selection_mode="single-row",  # Single row selection
             key="lineup_display_dataframe",
             height=445,
             hide_index=True