update nn translation
update nn translation

Change-Id: I161e1c3d96f45133ad87253efd47e5d00b7c5994
Reviewed-on: https://gerrit.instructure.com/210185
Tested-by: Jenkins

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