Update exposure_player selection in app.py to use unique player names from projections_df, ensuring accurate data representation in exposure management.

app.py

@@ -1330,7 +1330,7 @@ with tab2:
                         st.session_state['export_merge'] = st.session_state['export_base'].copy()
             with st.expander('Exposure Management'):
                 with st.form(key='Exposures'):
-                    exposure_player = st.selectbox("Player", options=sorted(list(player_names)), key='exposure_player')
+                    exposure_player = st.selectbox("Player", options=sorted(list(set(st.session_state['projections_df']['player_names'].unique()))), key='exposure_player')
                     exposure_target = st.number_input("Target Exposure", value=.50, min_value=0.0, max_value=1.0, step=0.01)
                     if 'Stack' in st.session_state['working_frame'].columns:
                         exposure_stack_bool = st.selectbox("Maintain Stacks?", options=['Yes', 'No'], index=0)