[IMP] rating: UX improvements
[IMP] rating: UX improvements

This commit adds
- a button to redirect to rated document
on the form view
- only display the customer if there is one
on kanban card

ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo