Refactor data export logic to utilize list comprehension for mapping player IDs, improving performance and readability

app.py

@@ -249,8 +249,8 @@ with tab2:
                     st.session_state.working_seed = st.session_state.working_seed[np.isin(st.session_state.working_seed[:, 11], team_var2)]
                     st.session_state.working_seed = st.session_state.working_seed[np.isin(st.session_state.working_seed[:, 12], stack_var2)]
                 data_export = st.session_state.working_seed.copy()
-                for col in data_export[:, 0:9]:
-                    data_export[col] = data_export[col].map(dk_id_dict)
+                for col in range(9):
+                    data_export[:, col] = np.array([dk_id_dict.get(x, x) for x in data_export[:, col]])
                 st.download_button(
                     label="Export optimals set",
                     data=convert_df(data_export),