Add display of contest dataframe in app.py for enhanced user visibility

- Introduced a table display for the 'Contest' dataframe after backtesting uploads, improving user experience by providing immediate access to the processed data.
- This change complements previous updates by ensuring users can easily view relevant contest information following data uploads.

app.py

@@ -216,6 +216,7 @@ with tab1:
                 combined_df = combined_df.reset_index(drop=True)
                 st.session_state['entry_list'].append('Backtesting_upload')
                 st.session_state['Contest'] = combined_df
+                st.table(st.session_state['Contest'])
             else:
                 pass