Add 'finish' column to working DataFrame in app.py

- Introduced a new 'finish' column that mirrors the 'index' values, enhancing data tracking for percentile calculations.
- This addition improves the clarity and usability of the DataFrame during processing.

app.py

@@ -151,6 +151,7 @@ with tab2:
             working_df['dupes'] = working_df.groupby('sorted').transform('size')
             working_df = working_df.reset_index()
             working_df['percentile_finish'] = working_df['index'].rank(pct=True)
+            working_df['finish'] = working_df['index']
             working_df = working_df.drop(['sorted', 'index'], axis=1)
         elif type_var == 'Showdown':
             working_df['stack'] = working_df.apply(