update zh-Hant translation
update zh-Hant translation

Change-Id: I0abc5b8656c4770f5ddc5a6405fa73268234b5a6

grahamb/canvas-lms,HotChalk/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms,SwinburneOnline/canvas-lms,djbender/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,HotChalk/canvas-lms,venturehive/canvas-lms,fronteerio/canvas-lms,fronteerio/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,fronteerio/canvas-lms,grahamb/canvas-lms,HotChalk/canvas-lms,grahamb/canvas-lms,grahamb/canvas-lms,fronteerio/canvas-lms,HotChalk/canvas-lms,SwinburneOnline/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,SwinburneOnline/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,SwinburneOnline/canvas-lms