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

Change-Id: I580faf8ce881a12e51728b74ec34a9f4369fef00
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/271451
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>

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