Reduce displayed rows for contest and portfolio data in app.py to improve performance and user experience. Added entry to session state for backtesting uploads.

app.py

@@ -208,11 +208,12 @@ with tab1:
                 except:
                     pass
             st.write('Contest data:')
-            st.dataframe(st.session_state['Contest'].head(100))
+            st.dataframe(st.session_state['Contest'].head(25))
             if 'portfolio_df' in st.session_state:
                 st.write('Portfolio data:')
-                st.dataframe(st.session_state['portfolio_df'].head(100))
+                st.dataframe(st.session_state['portfolio_df'].head(25))
                 st.session_state['combined_df'] = pd.concat([st.session_state['Contest'], st.session_state['portfolio_df']], ignore_index=True)
+                st.session_state['entry_list'].append('Backtesting_upload')
             else:
                 pass