Update create_general_comparison.py to refine overall general calculation

- Adjusted the logic for calculating the overall general value to differentiate between 'Overall' and specific entrants, ensuring accurate representation of data.
- Updated the length calculation for general contests to reflect the correct subset based on the selected entrant, improving data accuracy in comparisons.

global_func/create_general_comparison.py

@@ -10,9 +10,11 @@ def create_general_comparison(df: pd.DataFrame, entrants: list = None):
             
             if entrant == 'Overall':
                 overall_general = pd.Series(list(df[each_col])).sum()
+                general_contest_len = len(df)
             else:
                 overall_general = pd.Series(list(df[df['BaseName'] == entrant][each_col])).sum()
-            general_contest_len = len(df)
+                general_contest_len = len(df[df['BaseName'] == entrant])
+            
             each_set_name = ['Overall']
             each_general_set = [overall_general]
             each_general_len_set = [general_contest_len]