Replace eslint pre-commit hook with local configuration

[pyoor]

Replaces the eslint hook with a local configuration that tracks all eslint dependencies in package.json. Also updates the configuration to use the new flat format. The prior configuration format is now deprecated.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 69.98%. Comparing base (5e4d3b6) to head (0ca0a1c).

:exclamation: Current head 0ca0a1c differs from pull request most recent head 7cf25e0

Please upload reports for the commit 7cf25e0 to get more accurate results.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #987 +/- ## ======================================= Coverage 69.98% 69.98% ======================================= Files 150 150 Lines 9266 9266 Branches 90 90 ======================================= Hits 6485 6485 Misses 2760 2760 Partials 21 21 ```

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