Update contest file upload handling in app.py to read CSV files directly

- Modified the logic for handling uploaded contest files to read CSV data directly into the session state, improving data processing efficiency.
- Ensured that the session state is updated correctly with the contest file data for further analysis, maintaining the overall user experience during uploads.

app.py

@@ -81,7 +81,7 @@ with tab1:
             st.session_state.clear()
             st.session_state['Contest_upload'] = st.file_uploader("Upload Contest File (CSV or Excel)", type=['csv', 'xlsx', 'xls'])
             if st.session_state['Contest_upload'] is not None:
-                st.session_state['Contest_file'] = st.session_state['Contest_upload'].copy()
+                st.session_state['Contest_file'] = pd.read_csv(st.session_state['Contest_upload'])
             st.session_state['Contest_file_helper'] = grab_contest_data(sport_select, name_parse.iloc[0], contest_id_map, date_select)
             if 'Contest' in st.session_state:
                 del st.session_state['Contest']