refactor: update component tests from Jest to Vitest

[joshblack]

Another batch of component tests updated from Jest to Vitest.

Changelog

New

Changed

The following component tests were updated from Jest to Vitest:

• LabelGroup
• Link
• live-region
• NavList
• Popover
• Portal

Removed

[changeset-bot]

⚠️ No Changeset found

Latest commit: ecf53d1

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[github-actions]

👋 Hi, this pull request contains changes to the source code that github/github depends on. If you are GitHub staff, we recommend testing these changes with github/github using the integration workflow. Thanks!

[github-actions]

size-limit report 📦

Path	Size
packages/react/dist/browser.esm.js	94.34 KB (0%)
packages/react/dist/browser.umd.js	94.5 KB (0%)