`useOverflow` argument change: `items` → `itemsCount` #13925

Job	Run time
Zip and Upload files to Veracode	0s
Install node modules	32s
Test for a11y violations	2m 33s
Audit node modules	38s
Build and lint packages (ubuntu-latest)	1m 14s
Build website and playgrounds	2m 52s
Build and lint packages (windows-latest)	2m 21s
Run e2e tests	3m 13s
Run unit tests	4m 32s
Run visual tests (css)	7m 47s
Run visual tests (react)	8m 3s
Push static files to github pages	1m 54s
	35m 39s

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