Use shared ESLint config

[macfarlandian]

Description of the change

Replace the local eslint config with a shared package, with some minor adjustments to conform to new rules.

Type of change

• Bug fix (non-breaking change that fixes an issue)
• 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

part of https://github.com/Recidiviz/recidiviz-data/issues/6719

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:

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

[coveralls]

Pull Request Test Coverage Report for Build 730678200

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-16.4%) to 56.696%

---

Totals
Change from base Build 709306468:	-16.4%
Covered Lines:	972
Relevant Lines:	1670

---

💛 - Coveralls

[jovergaag]

Oh thaaaats nice.

[jovergaag]

🤩

[macfarlandian]

that big Coveralls drop, in case anyone was wondering, seems to be a glitch ... when you click through to the build it shows no change in coverage but it failed to include one of the packages in the final report. i'll keep an eye on it though