added a basic comparison set page, with a table of the data that changes only (just to fit it in) and allowing them to be deleted

db.py

@@ -404,3 +404,11 @@ def delete_estimated_bills():
     conn.commit()
     conn.close()
     return
+
+def delete_cset(id):
+    conn = connect_db(False)
+    cur = conn.cursor()
+    cur.execute( f"delete from comparison_set where id = '{id}'" )
+    conn.commit()
+    conn.close()
+    return