Remembers invoice

[bordalix]

This PR makes Marina remember previous invoices and don't ask for a submarine swap again.

Implements a new updater strategy for refundable tx (tx from failed swaps):

• these swaps can be in 2 different scenarios:
  • they were broadcasted (ie, have a txid)
  • remove them if they were swepts by Boltz (not refundable anymore because were spent)
  • user didn't went through and didn't broadcasted the tx
  • kept in cache cause we can't ask Boltz for another swap with the same invoice, so we will use this values if that happens
  • after invoice expiration date these swaps are removed from storage

Fixes bugs on tx list:

• Wrong 0
• Refund button was available on tx not confirmed

@tiero please review

[tiero]

tACK re-using invoice like @altafan reported

didn't tested let invoice expiring, but should be safe if it happens