Collapse all ACF fields in WP edit page

Make editing easier by closing all ACF fields in WP edit page

add_action('admin_footer-post.php', 'my_acf_collapse_field_groups_all_edit_pages');
function my_acf_collapse_field_groups_all_edit_pages() {
    // Check if we're on a post edit screen
    if (isset($_GET['action']) && $_GET['action'] === 'edit') {
        ?>
        <script type="text/javascript">
        (function($) {
            $(document).ready(function() {
                // Collapse all ACF field groups by adding 'closed' class
                $('.acf-postbox').addClass('closed');
            });
        })(jQuery);
        </script>
        <?php
    }
}