To make sure the required primary templates have been generated from
the theme's manifest when inherited views are imported/updated, this
commit triggers their generation from a first imported XML file.
This has been added to all themes for consistency, even the ones that
do not require it currently.
Related to https://github.com/odoo/odoo/pull/148443
task-3670496
X-original-commit: 22abe61eaf
Part-of: odoo/design-themes#761
Benoit Socias