build: add `ariaLabel` to bottom sheet demo (#23601)
build: add `ariaLabel` to bottom sheet demo (#23601)


crisbeto/material2,angular/components,angular/components,crisbeto/material2,crisbeto/material2,josephperrott/material2,angular/components,josephperrott/material2,josephperrott/material2,angular/components,crisbeto/material2,josephperrott/material2,josephperrott/material2