Improve the email template adding additional order details (products, total price)

I agree that this is useful. On a site that I use Commerce Abandoned Carts on, I've embedded a table in the CAC email template. That table consists of two columns: the left column contains product images, the right column the product names with a short description.

For each product, I use a custom view mode that I called 'mail'. A template for a certain product type looks like this in my case:

<tr valign="top">
  <td>{{ product.field_product_image }}</td>
  <td>
    <h2>{{ product.title }}</h2>
    {{ product.field_auteurs }}
  </td>
</tr>

I think that how I implemented displaying products in the CAC mail is a bit to fancy to use as a default, as it would require a lot of setup. We could indeed go for a simpler approach as default, like you propose in the issue summary.

Do you need a patch for the template, or would you prefer to simply extend the documentation? Let me know.