[ADD] account: translate note on ka fiscal position
[ADD] account: translate note on ka fiscal position

The 'note' field on account.fiscal.position is the "Legal mentions that have to
be printed on the invoices." As the invoice is translated in the customer
language, it makes sense to be able to translate this note too.

Closes #14735

dfang/odoo,ygol/odoo,hip-odoo/odoo,hip-odoo/odoo,ygol/odoo,dfang/odoo,ygol/odoo,dfang/odoo,dfang/odoo,dfang/odoo,ygol/odoo,hip-odoo/odoo,hip-odoo/odoo,dfang/odoo,ygol/odoo,hip-odoo/odoo,ygol/odoo,hip-odoo/odoo,ygol/odoo