[IMP] website_quote: Made title and amount font size from heading 2 to h...

...eading 3 in comparisons snippet
https://www.odoo.com/web#id=10321&view_type=form&model=project.task&menu_id=3942&action=327
pad: https://pad.odoo.com/p/r.UONJmmhS4ysoUZOy
why you replace h2 tag to h3?