Enable users to receive and respond to transaction signature request - Closes #4418

[reyraa]

What was the problem?

This PR resolves #4418

How was it solved?

• [ ] Implement tx signature logic
• [ ] Ensure Desktop can handle different tx types
• [ ] Add required unit tests

How was it tested?

• [ ] Manual testing via different tx types
• [ ] Unit tests

[ManuGowda]

This PR is suspended until we resolve transaction signing related issues in SDK v6 objective.

CC: @soroushm tagging you so that next time onwards an PRs which gets blocked like this we should mark them suspend and leave a comment, please inform team members to do, if failed please take care of it yourself 🙏🏼

Marking suspend of providing appropriate labels help the auditor understand the reasoning behind our actions as well as within and across our own departments 🙏🏼