Improve error message when using ledger device as a signer

[elizabethengelman]

Currently when the ledger device returns a failing retcode we return that code instead of an informative error message in these scenarios:
- when the ledger is locked
- when hash signing is not enabled
- when the user rejects the tx

[github-actions]

This issue is stale because it has been assigned for 30 days with no activity. It will be closed in 90 days unless the stale label is removed, and the assignee is removed or updated.

[github-actions]

This issue is stale because it has been assigned for 30 days with no activity. It will be closed in 90 days unless the stale label is removed, and the assignee is removed or updated.

[github-actions]

This issue is stale because it has been assigned for 90 days with no activity.