[IMP] base: use sequence widget on view tree in action form
[IMP] base: use sequence widget on view tree in action form

To reorder views using drag and drop

closes odoo/odoo#31437

Signed-off-by: Martin Trigaux (mat) <cc7c5be316e48d137cbb549833b85d91034d799d@odoo.com>
ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo