A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, stretchFullWidth } from '@wordpress/icons';
<Icon icon={stretchFullWidth} />
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M5 4h14v11H5V4Zm11 16H8v-1.5h8V20Z"></path></svg>
stretchFullWidth – WordPress Icon Library