Updating eslint and rebuilding the setup.

[erinesullivan]

Overview

dependabot has made its first update, which exposed eslint-config-standard not being up to date in over a year. It is not compatible with the latest version of eslint. Turns out that initializing eslint has changed. This pull request uninstalls all eslint-related dependencies and follows the new setup, which added these dependencies:

• @eslint/js
• globals

These dependencies have been removed:

• eslint-config-standard
• eslint-plugin-import
• eslint-plugin-node
• eslint-plugin-promise
• eslint-webpack-plugin

Testing

• Run the tests to make sure they pass (docker-compose run --rm web bundle exec rspec).
  • Break the new/updated unit tests to make sure they're working properly.
• Make sure the PR is consistent in these browsers:
  • Chrome
  • Firefox
  • Safari
  • Edge
• Run accessibility tests:
  • WAVE
  • ARC Toolkit
  • axe DevTools
• Run npm run eslint and see if files pass. Make some changes to files that would throw an error and run again.