Credit limits are added to total balance

[NDelfs]

Versions:
Firefly: 6.1.24
Pico: dev dated 20241215

This is similar to #8 but while that one wants to have liabilities like a house. This report is about the account type credit card reporting wrong value to total balance.

Setup in firefly:
Opening balance: -1000
Account role: Credit card
Virtual balance: 40000

Results:
Total balance in firefly: -1000

Total balance in Pico: 39000

Expected results and thoughts
A credit card can never add to the total balance, only reduce. So it seems like the virtual balance (credit limit) is not removed correctly.

[cioraneanu]

Thanks for reporting it. Looks related to #8.

Will look into it soon.