如何在Magento 2的“订单和账户信息”部分显示订单总重量？

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
    <module name="Custom_Weight" setup_version="1.0.0">
        <sequence>
            <module name="Magento_Sales"/>
        </sequence>
    </module>
</config>

<?php
use Magento\Framework\Component\ComponentRegistrar;

ComponentRegistrar::register(
    ComponentRegistrar::MODULE,
    'Custom_Weight',
    __DIR__
);

<?php
namespace Custom\Weight\Block\Order;

use Magento\Framework\View\Element\Template;
use Magento\Framework\View\Element\Template\Context;
use Magento\Sales\Model\Order;

class Info extends Template
{
    protected $order;

    public function __construct(
        Context $context,
        Order $order,
        array $data = []
    ) {
        $this->order = $order;
        parent::__construct($context, $data);
    }

    public function getOrderWeight()
    {
        $orderId = $this->getRequest()->getParam('order_id');
        $order = $this->order->load($orderId);
        $weight = $order->getData('weight');
        return $weight;
    }
}