[FIX] payment: Translatable thanks message
[FIX] payment: Translatable thanks message

If the help message is translatable,
there is no reason why the thanks message
coudln't be as well.

This is a following of the revision
f37a40c4c0b7813483faa5a1d9216407e9cb9146

opw-670228

sysadminmatmoz/OCB,sysadminmatmoz/OCB,bplancher/odoo,ygol/odoo,hip-odoo/odoo,microcom/odoo,stephen144/odoo,storm-computers/odoo,bplancher/odoo,hip-odoo/odoo,storm-computers/odoo,Elico-Corp/odoo_OCB,sysadminmatmoz/OCB,laslabs/odoo,stephen144/odoo,storm-computers/odoo,stephen144/odoo,laslabs/odoo,laslabs/odoo,stephen144/odoo,bplancher/odoo,Elico-Corp/odoo_OCB,microcom/odoo,dfang/odoo,Elico-Corp/odoo_OCB,microcom/odoo,sysadminmatmoz/OCB,dfang/odoo,ygol/odoo,dfang/odoo,microcom/odoo,laslabs/odoo,ygol/odoo,bplancher/odoo,storm-computers/odoo,stephen144/odoo,sysadminmatmoz/OCB,storm-computers/odoo,bplancher/odoo,microcom/odoo,dfang/odoo,Elico-Corp/odoo_OCB,hip-odoo/odoo,laslabs/odoo,ygol/odoo,sysadminmatmoz/OCB,bplancher/odoo,laslabs/odoo,sysadminmatmoz/OCB,dfang/odoo,storm-computers/odoo,hip-odoo/odoo,microcom/odoo,stephen144/odoo,Elico-Corp/odoo_OCB,ygol/odoo,dfang/odoo,hip-odoo/odoo,ygol/odoo,ygol/odoo,Elico-Corp/odoo_OCB,hip-odoo/odoo