update zh-Hans translation
update zh-Hans translation

Change-Id: Iaa683d3576ddf007a691152fd9b3156d20495f84

sfu/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,venturehive/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,djbender/canvas-lms,instructure/canvas-lms,venturehive/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,djbender/canvas-lms