Fix exposure column naming in duplication info tab of app.py

- Updated the column renaming logic for the exposure percentage in the duplication info tab to correctly reference the duplication count variable.
- Adjusted the increment variable from stack_count_var to dupe_count_var to ensure accurate tracking of duplication metrics in the displayed dataframe.

app.py

@@ -289,12 +289,12 @@ with tab2:
                     set_frame = each_set.to_frame().reset_index().rename(columns={'index': 'Dupes', 'count': 'Count'})
                     set_frame['Percent'] = set_frame['Count'] / len(each_frame_set[dupe_count_var])
                     set_frame = set_frame[['Dupes', 'Percent']]
-                    set_frame = set_frame.rename(columns={'Percent': f'Exposure {each_set_name[stack_count_var]}'})
+                    set_frame = set_frame.rename(columns={'Percent': f'Exposure {each_set_name[dupe_count_var]}'})
                     if 'dupe_frame' not in st.session_state:
                         st.session_state['dupe_frame'] = set_frame
                     else:
                         st.session_state['dupe_frame'] = pd.merge(st.session_state['dupe_frame'], set_frame, on='Dupes', how='outer')
-                    stack_count_var += 1
+                    dupe_count_var += 1
                 st.dataframe(st.session_state['dupe_frame'].
                     sort_values(by='Exposure Overall', ascending=False).
                     style.background_gradient(cmap='RdYlGn').