[FIX] website_forum: set website_id when created from frontend
[FIX] website_forum: set website_id when created from frontend

Every records created from frontend should have the website_id set to the
current website.
Most was done with 066cfc9598a3, but forum was missing it.

Fixes #45749

closes odoo/odoo#46126

X-original-commit: 08540d7853d497e326182e822b359cd6fcb05d59
Signed-off-by: Romain Derie <a9a1578f1a6d5b390f1e6505f5f716509d49a3ed@users.noreply.github.com>

ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo