Custom data partly missing

Hi

Love the cart and checkout blocks! But I have some custom code that a developer added who I cannot get hold of now. It adds a note and preview image into the cart product data. But switching to the new block it shows everything except the preview image, any idea why please?

// Add custom note as custom cart item data
add_filter('woocommerce_add_cart_item_data', 'custom_woocommerce_add_cart_item_data', 10, 4)
	function get_custom_product_note( $cart_item_data, $product_id ){
    if ( isset($_GET['note']) && ! empty($_GET['note']) ) {
        $cart_item_data['custom_note'] = sanitize_text_field( $_GET['note'] );
        $cart_item_data['unique_key'] = md5( microtime().rand() );
    }
    if ( isset($_GET['design']) && ! empty($_GET['design']) ) {
        $cart_item_data['design'] = sanitize_text_field( $_GET['design'] );
    }

    return $cart_item_data;
}

// Display note in cart and checkout pages as cart item data - Optional
add_filter( 'woocommerce_get_item_data', 'display_custom_item_data', 10, 2 );
function display_custom_item_data( $cart_item_data, $cart_item ) {
    if ( isset( $cart_item['custom_note'] ) ){
        $cart_item_data[] = array(
            'name' => "Note",
            'value' =>   $cart_item['custom_note'],
        );
    }
    if ( isset( $cart_item['design'] ) ){
        $cart_item_data[] = array(
            'name' => "Preview",
            'value' =>   "<a href=\"$cart_item[design]\" target=\"_blank\" class=\"cartPreviewLink\"><img src=\"$cart_item[design]\" width=100 style=\"width:100px;max-width:100px!important;\" alt=\"\" /></a>",
        );
    }

    return $cart_item_data;
}