feat: add downloads details to checkout

[laurelfulford]

All Submissions:

• Have you followed the Newspack Contributing guideline?
• Does your code follow the WordPress' coding standards and VIP Go coding standards?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Changes proposed in this Pull Request:

This PR adds the downloads table to the thank you screen in the WooCommerce checkout.

It's normally shown by default, but our simplified thankyou.php template removes the hooks where that and other information are normally inserted. So this PR re-adds it by adding a check for downloads, and then manually inserts what's normally the contents of the woocommerce/order/order-downloads.php template.

See 1200550061930446-as-1204781973711258

How to test the changes in this Pull Request:

1. If your test site doesn't have one yet, create a downloadable product.
2. Apply this PR and run npm run build.
3. Go to your /shop screen, add your downloadable product to the cart, and run through the checkout process; on the final Thank You screen, confirm that a table with the download appears below the order information:

4. Set up a page with the Checkout button, with your downloadable product.
5. Run through the checkout using the Checkout button, and confirm you get to download your product from the thank you screen:

6. To make sure this change doesn't cause any other issues, repeat steps 3 and 5 with non-downloadable products, and with carts with both a non-downloadable and a downloadable product.

Other information:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your changes, as applicable?
• Have you successfully ran tests with your changes locally?

[miguelpeixe]

Tests well! 🙌

Non-blocking: if this template is copied from Woo, should we use wc_get_template() instead?

E.g.:

		<?php
		$downloads = $order->get_downloadable_items();
		if ( $downloads ) {
			wc_get_template(
				'order/order-downloads.php',
				array(
					'downloads'  => $downloads,
					'show_title' => true,
				)
			);
		}
		?>

[laurelfulford]

Non-blocking: if this template is copied from Woo, should we use wc_get_template() instead?

Oh, that's a much better idea 🙂 Will make that update before merging!

[matticbot]

🎉 This PR is included in version 1.77.0-alpha.1 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀

[matticbot]

🎉 This PR is included in version 1.77.0 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀