Purpose of this commit is to enhance quality of templates proposed by Odoo
and make them use notification layout when send by emails. Those emails
are cleaner and more up to date compared to other emails.
Including
* when sending the template attached to the product, specify the layout
to use to encapsulate the notification email;
There is a huge ugly demo data of odoo online contained in this product.
After some thinking we choose not to modify it as demo data update will
belong to another task.
This commit is related to task ID 51122 (and PR #24052).
Pratima Gupta
37ea5dc316