[bugfix] NavBar click event (#354)

* 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

* [bugfix] Search box-sizing wrong

* [Doc] update vant-demo respo

* [Doc] translate theme & demo pages

* [Doc] add Internationalization document

* [bugfix] remove unnecessary props

* [fix] optimize clickoutside

* [new feature] optimize find-parent

* [new feature]: change document title accordinng to language

* [new feature] Pagination code review

* [improvement] adjust icon-font unicode

* [improvement] Icon spinner color inherit

* [improvement] icon default width

* [bugfix] DateTimePicker validate date props

* [bugfix] Tab item text ellipsis

* [improvement] optimize single line ellipsis

* [Improvement] optimzie staticClass

* [Improvement] Button: use sfc instread of jsx

* [Improvement] update actionsheet close icon style

* fix: yarn.lock

* fix: icon test cases

* [bugfix] errors during ssr

* [Improvement] SubmitBar add left slot

* [new feature] ImagePreview support manually close

* fix: ImagePreview test case

* [Doc] add switch lang button in mobile

* [bugfix] Popup overlay style update

* [bugfix] NavBar click event

packages/nav-bar/index.vue

@@ -1,6 +1,6 @@
 <template>
   <div class="van-nav-bar van-hairline--top-bottom" :class="{ 'van-nav-bar--fixed': fixed }">
-    <div class="van-nav-bar__left" @click="$emit('clickLeft')">
+    <div class="van-nav-bar__left" @click="$emit('click-left')">
       <slot name="left">
         <van-icon v-if="leftArrow" class="van-nav-bar__arrow" name="arrow" />
         <span v-if="leftText" v-text="leftText" class="van-nav-bar__text" />
@@ -9,7 +9,7 @@
     <div class="van-nav-bar__title">
       <slot name="title">{{ title }}</slot>
     </div>
-    <div class="van-nav-bar__right" @click="$emit('clickRight')">
+    <div class="van-nav-bar__right" @click="$emit('click-right')">
       <slot name="right">
         <span v-if="rightText" v-text="rightText" class="van-nav-bar__text" />
       </slot>