[FIX] account: default taxes
[FIX] account: default taxes

Use `ir.values` for default taxes. Stop using `ir.config_parameter`. The
logic is made in order to be as error-proof as possible.

Backport of a9ede7fdfa0cec06d8bdc31b26e7549959c256d4

opw-807226

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