update pt translation
update pt translation

Change-Id: I31557ed7887b96a0ec0e56676b695257af6c9849

roxolan/canvas-lms,grahamb/canvas-lms,redconfetti/canvas-lms,grahamb/canvas-lms,venturehive/canvas-lms,fronteerio/canvas-lms,djbender/canvas-lms,SwinburneOnline/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,roxolan/canvas-lms,grahamb/canvas-lms,SwinburneOnline/canvas-lms,HotChalk/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,fronteerio/canvas-lms,SwinburneOnline/canvas-lms,redconfetti/canvas-lms,fronteerio/canvas-lms,HotChalk/canvas-lms,HotChalk/canvas-lms,SwinburneOnline/canvas-lms,grahamb/canvas-lms,redconfetti/canvas-lms,sfu/canvas-lms,fronteerio/canvas-lms,HotChalk/canvas-lms,roxolan/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms,roxolan/canvas-lms,redconfetti/canvas-lms,venturehive/canvas-lms