update pt-BR translation
update pt-BR translation

Change-Id: Ibccb99eea30fb938fa679601a1ca06cb00cc4a3c

djbender/canvas-lms,djbender/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms