chore(renovate): refactor config

[rarkins]

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Description

Flatten packageRules and update field names

Detail

See renovatebot/renovate#11732

Checklist

• 👌 design updates are Garden Designer approved (add the
  designer as a reviewer)
• 🌐 demo is up-to-date (yarn start)
• ⬅️ renders as expected with reversed (RTL) direction
• 🤘 renders as expected with Bedrock CSS (?bedrock)
• ♿ analyzed via axe and evaluated using VoiceOver
• 💂‍♂️ includes new unit tests
• 📝 tested in Chrome, Firefox, Safari, Edge, and IE11

[viceice]

@rarkins "rangeStrategy": "replace", was removed intentionally?

[rarkins]

It's the default and I couldn't see anywhere overriding it

[jzempel]

Awesome. Thanks a mil 🎉