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

Change-Id: Id908a6ec133ce5b420adda30e13018e1de78a4cd
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/297642
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