[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 066cfc9598, but forum was missing it.

Fixes #45749

closes odoo/odoo#46126

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

addons/website_forum/controllers/main.py

@@ -49,7 +49,11 @@ class WebsiteForum(WebsiteProfile):
 
     @http.route('/forum/new', type='json', auth="user", methods=['POST'], website=True)
     def forum_create(self, forum_name="New Forum", forum_mode="questions", add_menu=False):
-        forum_id = request.env['forum.forum'].create({'name': forum_name, 'mode': forum_mode})
+        forum_id = request.env['forum.forum'].create({
+            'name': forum_name,
+            'mode': forum_mode,
+            'website_id': request.website.id,
+        })
         if add_menu:
             request.env['website.menu'].create({
                 'name': forum_name,