Bug in release command

[Catrya]

Sometimes it happens that when a seller presses /release command the hold invoice is charged, but the ln node does not attempt to pay the buyer, and the order does not change status, but remains in FIAT_SENT status.

If the seller tries to do /release again, they will not get any response from the bot

Proposal: If the invoice has already been collected and the status has not changed, change the status and try to pay the buyer