A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, tableRowBefore } from '@wordpress/icons';
<Icon icon={tableRowBefore} />
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M21 5c0-1.1-.9-2-2-2H5c-1 0-1.9.8-2 1.8V19.2c.1.9.9 1.7 1.8 1.8H19c1.1 0 2-.9 2-2V5ZM4.5 14V5c0-.3.2-.5.5-.5h14c.3 0 .5.2.5.5v9h-15Zm4 5.5H5c-.3 0-.5-.2-.5-.5v-3.5h4v4Zm5.5 0h-4v-4h4v4Zm5.5-.5c0 .3-.2.5-.5.5h-3.5v-4h4V19ZM11.2 10h-3V8.5h3v-3h1.5v3h3V10h-3v3h-1.5v-3Z"></path></svg>
tableRowBefore – WordPress Icon Library