Update vue.d.ts (#4105)
Update vue.d.ts (#4105)

fix typo.
Hanks10100/vue,lizhiyao/vue,Kingwl/vue,cnchanning/vue,hanhongyuan/vue,Kingwl/vue,sreesirisha/GITMidtermexam,Hanks10100/vue,Jinjiang/vue,Kingwl/vue,xueyaodeai/vue,gebilaoxiong/vue,Jinjiang/vue,pramudaprakash/GITHUB,pramudaprakash/GITHUB,pramudaprakash/GITHUB,Jinjiang/vue,Ddder-FE/vue,Jinjiang/vue,greennyreborn/vue,greennyreborn/vue,greennyreborn/vue,Hanks10100/vue,leemotive/vue,hanhongyuan/vue,cnchanning/vue,hanhongyuan/vue,leemotive/vue,sreesirisha/GITMidtermexam,hanhongyuan/vue,cnchanning/vue,vuejs/vue,leemotive/vue,lizhiyao/vue,sreesirisha/GITMidtermexam,Ddder-FE/vue,vuejs/vue,KingMario/vue,gebilaoxiong/vue,gebilaoxiong/vue,vuejs/vue,Hanks10100/vue,optimizely/vue,KingMario/vue,lizhiyao/vue,leemotive/vue,xueyaodeai/vue,KingMario/vue,vuejs/vue,greennyreborn/vue,lizhiyao/vue,KingMario/vue,Kingwl/vue,Ddder-FE/vue,Ddder-FE/vue,sreesirisha/GITMidtermexam,pramudaprakash/GITHUB,xueyaodeai/vue,xueyaodeai/vue