*: mail, website_livechat. This PR fixes two issues with the live chat requests when initiated by the operator: - Thread name should not include "website" since [1] - Welcome message should not be shown when the operator is the one who initiated the chat [1]: https://github.com/odoo/odoo/pull/125931 closes odoo/odoo#132815 X-original-commit: 38a6658beec8bd4423ee8b4ac16f2592b9fb36ff Signed-off-by: Alexandre Kühn (aku) <aku@odoo.com>