Add account nonce, display parent identity to accounts and improve block author identity

[mariopino]

Closes #161 #162

Description:

Add to active accounts:

• Account nonce
• Display parent identity
• Improve block author name parsing in block listener/harvester.

Add account nonce, to accounts and

Thank you! 🚀

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For contributor:

• [ ] Reviewed Files changed in the github PR explorer
• [ ] Attach screenshots of the UI components on the PR description (if applicable)
• [ ] Scope of work approved for big PRs

For reviewer:

• [ ] Manually tested the changes on the UI