Purpose ======= On the Employees App, we dont have a smart way to start a discuss with a colleague or an employee. Specification ============= Style for each button : - use fa-comments - use primary color/action color (green) On private/public employees form/kanban views, add a button to start a chat with the user closes odoo/odoo#51484 Taskid: 2252207 Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>