Add debug print statements in 'Data Load' section of 'app.py' to log the count of missing values in the portfolio for improved data validation during file loading.

app.py

@@ -309,12 +309,14 @@ if selected_tab == 'Data Load':
                     st.session_state['export_portfolio'], st.session_state['portfolio'] = load_ss_file(portfolio_file, st.session_state['csv_file'], site_var, type_var, sport_var)
                     st.session_state['export_portfolio'] = st.session_state['export_portfolio'].dropna(how='all')
                     st.session_state['export_portfolio'] = st.session_state['export_portfolio'].reset_index(drop=True)
+                    print(st.session_state['portfolio'].isna().sum())
                     st.session_state['portfolio'] = st.session_state['portfolio'].dropna(how='all')
                     st.session_state['portfolio'] = st.session_state['portfolio'].reset_index(drop=True)
                 elif upload_toggle == 'Draftkings/Fanduel (Names + IDs)':
                     st.session_state['export_portfolio'], st.session_state['portfolio'] = load_dk_fd_file(portfolio_file, st.session_state['csv_file'], site_var, type_var, sport_var)
                     st.session_state['export_portfolio'] = st.session_state['export_portfolio'].dropna(how='all')
                     st.session_state['export_portfolio'] = st.session_state['export_portfolio'].reset_index(drop=True)
+                    print(st.session_state['portfolio'].isna().sum())
                     st.session_state['portfolio'] = st.session_state['portfolio'].dropna(how='all')
                     st.session_state['portfolio'] = st.session_state['portfolio'].reset_index(drop=True)
                 else: