update sv-x-k12 translation
update sv-x-k12 translation

Change-Id: Ib1f285fae83f641f3d9625de267fe97cfedc445f
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/295389
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