Pontoon: Update Vietnamese (vi) localization of AMO
Pontoon: Update Vietnamese (vi) localization of AMO

Co-authored-by: Quế Tùng <8d73b2e17c5d12944b4c5ae79226d0b18e19b972@gmail.com>
Co-authored-by: nguyenhoangminhngoc2005 <650762b7783606a189536d2a787150045dcdf05b@gmail.com>
Co-authored-by: ﻿ <8d64ccd2db9eab87ddc0bdf2cc65d181d81fd593@gmail.com>
Co-authored-by: nguye2lo <86e1811bf2120e62c1a271e6b4569ec9df6942c3@mail.uc.edu>

wagnerand/addons-server,mozilla/addons-server,diox/olympia,wagnerand/addons-server,wagnerand/addons-server,mozilla/addons-server,mozilla/addons-server,diox/olympia,mozilla/addons-server,diox/olympia,diox/olympia,wagnerand/addons-server