Adds note on when states abolished parole, if applicable.

[jessex]

Description of the change

This adds notes to the top of the page identifying when a state abolished parole, if applicable. This plays nicely with the other optional text indicating whether a state is unified. Here are three screenshots showing, respectively, a state with no extra info, a state only with the parole info, and a state with both the parole and unification info.

Type of change

• [ ] Bug fix (non-breaking change that fixes an issue)
• [x] New feature (non-breaking change that adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Configuration change (adjusts configuration to achieve some end related to functionality, development, performance, or security)

Related issues

Closes #126

Checklists

Development

These boxes should be checked by the submitter prior to merging:

• [x] Manual testing against realistic data has been performed locally

Code review

These boxes should be checked by reviewers prior to merging:

• [x] This pull request has a descriptive title and information useful to a reviewer
• [x] This pull request has been moved out of a Draft state, has no "Work In Progress" label, and has assigned reviewers
• [x] Potential security implications or infrastructural changes have been considered, if relevant