Updating lint

[kwhitley]

Description

This adds basic linting back into the project.

Issue Related

• Link to the related issue:

Type of Change (select one and follow subtasks)

• [x] Maintenance or repo-level work (e.g. linting, build, tests, refactoring, etc.)
• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
  • [ ] Is this a mainstream benefit or an edge case?
  • [ ] Is it worth the bytes?
• [ ] Breaking change (fix or feature that would cause existing functionality/userland code to not work as expected)
  • [ ] Explain why a breaking change is necessary:
• [ ] This change requires (or is) a documentation update
  • [ ] I have added necessary local documentation (if appropriate)
  • [ ] I have added necessary itty.dev documentation (if appropriate)

Testing

I ran the full test suite, including yarn build

Checklist

• [ ] I have read the CONTRIBUTING doc