Shortcode ( item description ) in email template

Hello

I need help adding a new shortcode to my current snapcode.

I’m using the WooCommerce Email Customizer plugin.
I want to add a shortcode to show the order item detail.

I attach a screenshot:

The current snapcode I`m using is:

<?php
/**
* Custom code shortcode
*
* @var $order WooCommerce order
* @var $email_id WooCommerce email id (new_order, cancelled_order)
* @var $sent_to_admin WooCommerce email send to admin
* @var $plain_text WooCommerce email format
* @var $email WooCommerce email object
* @var $attr array custom code attributes
*/

if ( ! defined( 'ABSPATH' ) ) {
exit;
}

if ( isset($attr['type']) && $attr['type'] == 'pre-order-link' ) {
printf(
__( "%sצפייה בהזמנה%s", 'wc-pre-orders' ),
'<a href="' . $order->get_view_order_url() . '">',
'</a>'
);
}

if(isset($attr['type']) && $attr['type'] == 'pre-order-qty'){
$order_items = $order->get_items();
    foreach ($order_items as $item ) {
        printf( __( "%s%s", 'wc-pre-orders' ), '<b>' . $order->get_item_count() . '', '</b>' );
    }
}

if(isset($attr['type']) && $attr['type'] == 'pre-order-item'){
$order_items = $order->get_items();
    foreach ($order_items as $item ) {
        printf( __( "%s%s", 'wc-pre-orders' ), '<b> ' . $item->get_name() . '', '</b>' );
    }
}

I need to add to the snapcode a new code for the “item detail”