Breadcrumbs : Add overflow menu for responsive behavior

[pksjce]

Closes https://github.com/github/primer/issues/5122

Changelog

Breadcrumbs now show an overflow menu with the following features

• If no of items in the breadcrumbs is >5 then we show the menu
• If the screen width can't accomodate the items then we show the menu
• if overflow==="menu-with-root" show the root item.

https://www.loom.com/share/8902798416b741c9959fc7bb501185a5

New

Changed

Removed

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: 71753ad

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

This PR includes changesets to release 2 packages

Name	Type
@primer/react	Patch
@primer/styled-react	Patch

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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	89.54 KB (+1.02% 🔺)
packages/react/dist/browser.umd.js	89.66 KB (+1.05% 🔺)

[pksjce]

@joshblack - I have created this issue for the Esc button bug. It emerged because I made the IconButton of as summary.
Thanks for catching it. Will fix it separately

[strackoverflow]

Looks amazing!