[FIX] website_forum: archived forum -> no ask
[FIX] website_forum: archived forum -> no ask

An archived forum could still be posted in, something better should be
done in the next version (eg. website published present on a lot of
record type) but as of 10.0 just this improvement is done.

opw-745510
closes #17365

hip-odoo/odoo,hip-odoo/odoo,ygol/odoo,hip-odoo/odoo,ygol/odoo,ygol/odoo,hip-odoo/odoo,hip-odoo/odoo,ygol/odoo,ygol/odoo,hip-odoo/odoo,ygol/odoo,ygol/odoo