If website is installed, the login page of Odoo has opengraph meta that will be used to create link preview on mention and channel link. This PR add a xpath condition to always ignore mention and channel link in the message body. Part of task-3000274 closes odoo/odoo#101678 X-original-commit: eb032a5c36af6402b79ae768ce29b3d84eacf3b7 Signed-off-by: Sébastien Theys (seb) <seb@odoo.com> Signed-off-by: Debondt Didier (did) <did@odoo.com>