[Quote builder] print to pdf 

- Task: https://www.odoo.com/web#id=9286&view_type=form&model=project.task&action=333&active_id=131
- Pad: https://pad.odoo.com/p/r.J3mShCzM9sV03MEw
I make some test, and it seems that these lines add empty div elements in the template, which create a blank on the PDF, so sometimes between the introduction and the pricing, an empty page can appears (to be check). So, if it is true, we will need to add the hidden-print class to this div tag, if the website_description are null : this will allow to edit the field but not render it on the pdf if it's empty.