chore: Convert Standard to eslint-config-standard

[nschonni]

Why:

Standard is a wrapper of opionated ESLint rules. By using the direct ESLint config, there is better integration with IDEs for showing ESLint errors while maintaining the existing style preference. Also can drop some of the JSX related dependencies that are bundled as part of the larger standard package.

What's being changed:

• Remove the standard package and replace with the ESLint packages for standard
• Fix issues flagged from going from older version of standard to latest ESLint+Standard
• Update calls to standard in the CI to use ESLint

Check off the following:

• All of the tests are passing.
• I have reviewed my changes in staging.
• For content changes, I have reviewed the localization checklist
• For content changes, I have reviewed the Content style guide for GitHub Docs.

[heiskr]

I'm curious about thoughts on including the eslint config and ignore in package.json instead of as separate files.

[nschonni]

I believe the separate ignore file usually has better performance, but I've not looked at using the inline config in package.json before

[heiskr]

This looks like a good change to me and one that I've run into personally.

[chiedo]

@nschonni thanks for creating this! Can you resolve the conflicts 🙏🏿

[nschonni]

@chiedo done!

[chiedo]

Just want one more review on this one! @JasonEtco can you please review!

[JasonEtco]

This looks great, thanks for all the improvements here (and everywhere else) @nschonni!

[github-actions]

Thanks very much for contributing! Your pull request has been merged 🎉 You should see your changes appear on the site in approximately 24 hours.