update pt translation
update pt translation

Change-Id: I86cd5ad0bb20d0a8c54103939a7190901e84792e
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/230883
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>

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