increment level in leaderboard on levelup

app.py

@@ -243,6 +243,9 @@ async def add_exp(member_id):
                             #await member.send(f"Level up! {current_level-1} -> {current_level}!")  
                             #if member_id == 811235357663297546:
 
+                            # increment the old level value (better to replace outright)
+                            global_df.loc[index, 'discord_level'] = current_level # do not change column name                            
+
                             row = global_df[global_df['discord_user_id'] == str(member_id)] # does this need to be string?
                             if not row.empty:
                                 target_exp = row['discord_exp'].values[0]