Update the Dialog stress test story to go fullscreen on narrow screens

[hectahertz]

Part of the work to improve reflow of the component. This helps not hide the content on small screens and represents correct usage of the Dialog component by consumers for a case like this.

Changelog

Changed

Updates the Dialog stress test story to go fullscreen on narrow screens.

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After:

Rollout strategy

• Patch release
• Minor release
• Major release; if selected, include a written rollout or migration plan
• None; if selected, include a brief description as to why

Testing & Reviewing

Merge checklist

• Added/updated tests
• Added/updated documentation
• Added/updated previews (Storybook)
• Changes are SSR compatible
• Tested in Chrome
• Tested in Firefox
• Tested in Safari
• Tested in Edge
• (GitHub staff only) Integration tests pass at github/github (Learn more about how to run integration tests)

[changeset-bot]

🦋 Changeset detected

Latest commit: bf90138

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@primer/react	Patch

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[github-actions]

size-limit report 📦

Path	Size
packages/react/dist/browser.esm.js	104.56 KB (+0.14% 🔺)
packages/react/dist/browser.umd.js	104.89 KB (+0.05% 🔺)