Bump xo from 0.18.2 to 0.23.0

[dependabot-preview]

Bumps xo from 0.18.2 to 0.23.0.

Release notes

Sourced from xo's releases.

v0.23.0

Highlights

• In v0.22.0, we added support for .ts and .tsx extensions by default. This caused a lot of problems for non-TS projects, so it has been reverted pending a better solution.
• The quotes rule is now set to disallow using template literals when you're not using any interpolation. xojs/eslint-config-xo@ea693f3
• Removed the no-use-before-define rule. It has too many false-positives. xojs/eslint-config-xo@1257597

New rules

• require-await
• unicorn/prefer-exponentiation-operator
• unicorn/catch-error-name (See this thread if you're wondering why error is preferred over err) (Sorry about the churn, but this is an important milestone towards more readable code. Code is written once but read many times. We should optimize for the latter.)

All changes

xojs/xo@v0.22.0...v0.23.0

v0.22.0

Highlights

• Upgraded to ESLint 5.
• Removed some patterns from the list of default ignores. They were too opinionated. xojs/xo@00d6b7c xojs/xo@8e4f435
  • fixture{-*,}.{js,jsx}
  • fixture{s,}/**
  • {test,tests,spec,__tests__}/fixture{s,}/**
  • **/bundle.js
• Added support for TypeScript and documented usage with Flow. xojs/xo@957b0d9
• Now respects nodeVersion option set in an override block. xojs/xo@98dee9a
• Fixed the CLI's --space option parsing. xojs/xo@f76c901

New rules

• no-misleading-character-class
• require-atomic-updates
• no-async-promise-executor
• ava/no-import-test-file

All changes

xojs/xo@v0.21.1...v0.22.0

v0.21.1

Fix space/useTabs conflict message with Prettier. xojs/xo@36f7f38

v0.21.0

... (truncated)

Commits

• f435698 0.23.0
• e29cacb Update dependencies
• 594f7f4 Remove ts and tsx from default extensions
• 4acb8f0 Rename main.js to cli-main.js for clarity
• 50a97fd Tiny travis.yml tweak
• be0e8cd Fix typo in readme (#350)
• be8c1d1 0.22.0
• 142744a Bump dependencies
• 8e4f435 Remove **/bundle.js as default ignore
• f76c901 Fix CLI's --space option parsing (#342)
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #85.