This update removes leftover references to old messaging widgets across several Odoo business modules. It has little direct impact on daily users, but keeps the system cleaner and avoids giving developers outdated examples to copy.

They have been removed in https://github.com/odoo/odoo/commit/3fea5b213, these must be left overs.

They don't really do any harm besides providing a bad example for devs.

Odoo PR: https://github.com/odoo/odoo/pull/127767

This update reorganizes where a live chat helpdesk mail shortcut is defined, moving it into the mail area where it more naturally belongs. The change helps keep related functionality grouped together, reducing maintenance complexity without changing day-to-day user workflows.

community: https://github.com/odoo/odoo/pull/128120