This update improves WhatsApp functionality by automatically sending messages through the system's messaging bus when a WhatsApp channel is created. This streamlines the process of sending messages and ensures they are properly routed. It's part of a larger effort to enhance WhatsApp communication within Odoo Enterprise.

`Store` automatically calls bus send when a bus channel is given.

part of task-5242369

community: https://github.com/odoo/odoo/pull/259865