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

Change-Id: I7a53a81fba5a74ebad63736cba584ceb184e0545
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/261236
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>

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