feat: update flexible multisig

[sokolova-an]

• Applied fixes for regular multisig;
• Cleaned up unused;
• Added restrictions to prevent proceeding with multisig creation if the wallet is hidden.

[github-actions[bot]]

Jest Unit tests results

Duration: 59.09 seconds

Start:	2024-11-22 16:44:14.935 UTC
Finish:	2024-11-22 16:45:14.025 UTC
Duration:	59.09 seconds

Outcome: Passed | Total Tests: 740 | Passed: 739 | Failed: 0

Total Test Suites:	158
Total Tests:	740
Failed Test Suites:	0
Failed Tests:	0
Passed Test Suites:	157
Passed Tests:	739
Pending Test Suites:	1
Pending Tests:	1