GH-3400 transaction creation with ledger and keystone

[DmitryBespalov]

Handles #3400

Changes proposed in this pull request:

• Fix for the ledger and keystone signature format sent to the api.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 8.27%. Comparing base (c50a242) to head (1eaf6a5).
Report is 1 commits behind head on main.

Files	Patch %	Lines
Multisig/Logic/Ledger/LedgerController.swift	0.00%	1 Missing ⚠️
...Management/KeystoneOwnerKey/KeystoneSignFlow.swift	0.00%	1 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #3401   +/-   ##
=====================================
  Coverage   8.27%   8.27%           
=====================================
  Files        789     789           
  Lines      44082   44082           
=====================================
  Hits        3647    3647           
  Misses     40435   40435           

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