Paginate UTXO selection for fidelity bonds

[ghost]

The UTXO selection list for fidelity bonds can become quite long if there are many UTXOs. We could paginate the list or think of other ways to make it more space efficient.

[editwentyone]

because we want to preselect a valid suggestion, and also sort the UTXOs by size and confirmations and CJ status, we could make both lists scrollable, so advanced users could maybe scroll through if needed at all

any feedback?