FFA

Title: Add a Bank Maintenance feature to manage multiple banks with different currencies.

As a user,
I want to maintain a list of different banks along with their associated currencies,
So that I can select the appropriate bank(s) for invoicing based on the currency required for each customer.

Acceptance Criteria:

1. Bank Maintenance Screen:
   • A new Bank Maintenance screen should be created to allow users to add, edit, and deactivate bank information.
   • Each bank entry should include:
     • Bank Name
     • Bank Account Number
     • Bank Currency (e.g., USD, EUR, MUR)
     • SWIFT/IBAN Code (optional)
     • Bank Address (optional)
     • Default Bank Option: Ability to mark one bank as the default for each currency.  Note that FFS team should decide whether to put the default bank in Configuration screen or here.
2. Validation:
   • The system should ensure that each bank-currency combination is unique.
   • Only one bank can be set as the default per currency.
   • Fields should be validated to accept the correct data formats (e.g., numeric for account numbers, alphanumeric for SWIFT codes).
3. Permissions:
   • Only users with authorised roles should have access to the Bank Maintenance screen for adding or modifying bank details.