Description of change

Improve displaying payload information on Block page

• resolves [Task]: Support Block Page: Add support for Candidacy Announcement payload on Block page #972
• resolves [Task]: Support Block Page: Improve Transaction Payload  #973
• resolves [Task]: Support Block Page: Improve Block and Transaction status on Block page #974
• resolves [Task]: Support Block Page: Improve Validation Block page #975

Type of change

• Enhancement (a non-breaking change which adds functionality)

How the change has been tested

Describe the tests that you ran to verify your changes.

Make sure to provide instructions for the maintainer as well as any relevant configurations.

Change checklist

• My code follows the contribution guidelines for this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes