themes-wordpress/the-menu/templates/index.html

<!-- wp:template-part {"slug":"header","tagName":"header","align":"full"} /-->

<!-- wp:group {"layout":{"type":"constrained"}} -->
<div class="wp-block-group">
    <!-- wp:pattern {"slug":"the-menu/posts-list"} /-->
    <!-- wp:pattern {"slug":"the-menu/gallery"} /-->
</div>
<!-- /wp:group -->

<!-- wp:template-part {"slug":"footer","tagName":"footer"} /-->