fix: resolve eslint working directory by looking up config files #4561
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Closes #4487
This PR changes eslint working directory resolution based on eslint config file markers and adds support for the new
eslint.config.js
config fileThe previous behavior was to resolve eslint working directory based on
node_modules
(or default to project root).This change should not break previous behavior since children
node_modules
will always be accompanied bypackage.json
in the same locations, which theale#handlers#eslint#FindConfig
looks for in the absence of an eslint config file.