themes-wordpress/perenne/patterns/post-navigation.php

<?php
/**
 * Title: Post Navigation
 * Slug: perenne/post-navigation
 * Inserter: no
 */

declare( strict_types = 1 );
?>

<!-- wp:post-navigation-link {"type":"previous","label":"<?php echo esc_html__( 'Previous', 'perenne' ); ?>"} /-->

<!-- wp:post-navigation-link {"label":"<?php echo esc_html__( 'Next', 'perenne' ); ?>"} /-->