[IMP] website_*: website publish button
[IMP] website_*: website publish button

When clicking on the publish/unpublish button in a form view, if the
user does not belong to the `base.group_website_publisher` group,
fallback to a simple toggling behavior.

open-synergy/website,acsone/website,open-synergy/website,gfcapalbo/website,acsone/website,LasLabs/website,LasLabs/website,LasLabs/website,brain-tec/website,brain-tec/website,gfcapalbo/website,gfcapalbo/website,acsone/website,open-synergy/website,brain-tec/website,LasLabs/website,gfcapalbo/website,brain-tec/website,open-synergy/website,acsone/website