[DevTools] Avoid scrollbars in Suspense breadcrumbs #35700
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[diff facebook/react@95ffd6cd...2dd9b7cf](facebook/react@95ffd6c...2dd9b7c) <details> <summary>React upstream changes</summary> - facebook/react#35724 - facebook/react#35711 - facebook/react#35710 - facebook/react#35708 - facebook/react#35705 - facebook/react#35700 </details>
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Summary
Alternate to #34914
The Suspense breadcrumbs are only a single line height high. Having a scrollbar in such a container looks bad since it takes up 50% of the space. MacOS also has this default where the scrollbar overlays the container on touch devices without a mouse attached (i.e. MacBook default).
Now we use the same UI we use in the Owner stack in the Components tab i.e. shrink to showing a single item and moving navigation into a menu.
How did you test this change?
Before:
After:
CleanShot.2026-02-05.at.14.59.44.mp4