Allowed hiding demo code in `LiveExample` #14313

Job	Run time
Install node modules	40s
Zip and Upload files to Veracode	0s
Build website and playgrounds	3m 16s
Build and lint packages (ubuntu-latest)	1m 23s
Audit node modules	28s
Run unit tests	4m 5s
Build and lint packages (windows-latest)	2m 33s
Run visual tests (css)	8m 2s
Test for a11y violations	3m 8s
Run e2e tests	3m 2s
Run visual tests (react)	8m 30s
Push static files to github pages	1m 45s
	36m 52s

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