This PR updates our generators to use `eslint.config.cjs` instead of
`eslint.config.js` so that Node resolution will treat it as CommonJS.
This solves an issue where having `"type": "module"` in `package.json`
will result in an error when Node tries to resolve the config file as
ESM.
Also allows us to clean up out Remix generators to not have to rename to
`eslint.config.cjs` to solve the same issue.
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## Current Behavior
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## Expected Behavior
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## Related Issue(s)
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Fixes #
