[new feature] add i18n support (#310)

* fix: Tabbar icon line-height

* [new feature] progress add showPivot prop

* [new feature] TabItem support vue-router

* [new feature] update document header style

* [Doc] add toast english ducoment

* [new feature] add i18n support

* feat: Extract demos from markdown

* feat: Base components demos

* [new feature] complete demo extract & translate

* [fix] text cases

* fix: add deepAssign test cases

* fix: changelog detail

* [new feature] AddressEdit support i18n

packages/badge-group/index.vue

@@ -9,7 +9,6 @@ export default {
   name: 'van-badge-group',
 
   props: {
-    // 当前激活 tab 面板的 key
     activeKey: {
       type: [Number, String],
       default: 0