Support the sources section at the bottom of the Jails view

[nasaownsky]

Description of the change

Added sources section for the new Jails view

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 #43

Checklists

Development

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

• [ ] 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

[nasaownsky]

Hey, @jessex, I figure out how Sources in the App works, and its require some source fields in fixture files that not exist in Jails data file. PRD says TBD for this section. So I've added support and hardcoded sources.

[colincadams]

I think hard-coding this is fine! We don't expect to expand this set of sources.

FYI will likely end up adding some additional methodology text to this section describing how we calculate the state total metrics. This text will also be static. But we can merge this in the meantime until that is defined!