update zh-Hant translation
update zh-Hant translation

Change-Id: I85117902d2dbd7a2c2c7159244749b692285c66d
Reviewed-on: https://gerrit.instructure.com/210350
Tested-by: Jenkins

sfu/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,djbender/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms