v3.0.0

• BREAKING: Switch config files from .cjs to .mjs (#464) a50096a
  • Breaking changes notes:
    • switches prettier.config.cjs and stylelint.config.cjs to prettier.config.mjs and stylelint.config.mjs
    • Use minimum eslint-config-upleveled@6.0.0 https://github.com/upleveled/eslint-config-upleveled/releases/tag/v6.0.0