update pt translation
update pt translation

Change-Id: Ie123e96b68e27a93f582f2c11c55cd4919cb29e2
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/248543
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>

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