FAS - UX - add ability to mark a refund as 'un-cashed' in a similar manner to undeliverable cheques

We can sync cheque status from CAS, but they won't include complex statuses such as 'un-cashed'

This ticket is to plan the edit function that staff can use to mark a cheque as 'un-cashed'

This will be a rare event, and it is assumed that the money will be adjusted behind the scenes prior to this step being taken.