bugFix:(IconButton) Set the min-width of IconButton to unset

[jonrohan]

This bug was found as part of #5070 and manifested in production as some bugs in the Sub-issues drag-n-drop buttons.

You can see the problem this change is trying to fix in the updated Storybook examples for the ActionBar with the flag off vs staff flag on.

Changelog

Changed

Set the min-width of IconButton to unset to resolve layout issues.

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: a4d2d1b

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	96.93 KB (0%)
packages/react/dist/browser.umd.js	97.12 KB (0%)

[langermank]

I think we made this change in PVC because of an accessibility failure, but we can re-think this if it comes up again