• updates babel-eslint to @babel/eslint-parser.
• @roots/sage: exports @roots/sage/eslint-config for use in theme.

@retlehs next sage release will need to have eslint configuration updated to:

module.exports = {
  root: true,
  extends: ['@roots/sage/eslint-config'],
};

I think this is the way to go. by exporting a base config further changes to the base will not need to be manually tracked by theme consumers. everything remains fully overridable so there is really very little trade off outside of a reduction of transparency. I think that's a good trade for most people using Sage (and for us as maintainers).

Dependencies

• add: @babel/eslint-parser
• remove: babel-eslint
• remove: prettier from default @roots/bud-eslint.