[IMP] website: show website name in ir.ui.view name_get

Before this commit, it was impossible to know which view was the one searched
if there was COW views.

Indeed, since multiwebsite, views might get duplicated from one website to
another. Then, when searching for an ir.ui.view in a form view, every
duplicated view would be listed next to each other with the exact same name
without a way to identify which one comes from which website.

This commit will suffix the view name by its website_id if there is one.

To do so, we use the context key that has been introduced with 62d73253.

task-1920052

closes odoo/odoo#33307

Signed-off-by: Jérémy Kersten (jke) <jke@openerp.com>