[FIX] mail: message for `AccessError`

`AccessError` requires the argument `msg`. Therefore, even if this error
is catched, we need to provide one, otherwise a `TypeError` is raised.

opw-2183184

closes odoo/odoo#44447

Signed-off-by: Nicolas Martinelli (nim) <nim@odoo.com>

addons/mail/controllers/main.py

@@ -90,7 +90,7 @@ class MailController(http.Controller):
                     #   redirect to the messaging.
                     suggested_company = record_sudo._get_mail_redirect_suggested_company()
                     if not suggested_company:
-                        raise AccessError()
+                        raise AccessError('')
                     cids = cids + [suggested_company.id]
                     record_sudo.with_user(uid).with_context(allowed_company_ids=cids).check_access_rule('read')
             except AccessError: