perf[navbar]: set langSelect to component && refine errorLog component

src/components/ErrorLog/index.vue

@@ -1,5 +1,5 @@
 <template>
-  <div>
+  <div v-if="errorLogs.length>0">
     <el-badge :is-dot="true" style="line-height: 30px;" @click.native="dialogTableVisible=true">
       <el-button size="small" type="danger" class="bug-btn">
         <svg t="1492682037685" class="bug-svg" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="1863"
@@ -11,7 +11,7 @@
     </el-badge>
 
     <el-dialog title="Error Log" :visible.sync="dialogTableVisible" width="80%">
-      <el-table :data="logsList" border>
+      <el-table :data="errorLogs" border>
         <el-table-column label="Message">
           <template slot-scope="scope">
             <div>
@@ -44,15 +44,15 @@
 <script>
 export default {
   name: 'errorLog',
-  props: {
-    logsList: {
-      type: Array
-    }
-  },
   data() {
     return {
       dialogTableVisible: false
     }
+  },
+  computed: {
+    errorLogs() {
+      return this.$store.getters.errorLogs
+    }
   }
 }
 </script>

src/components/LangSelect/index.vue

@@ -0,0 +1,41 @@
+<template>
+  <el-dropdown trigger="click" class='international' @command="handleSetLanguage">
+    <div>
+      <svg-icon class-name='international-icon' icon-class="language" />
+    </div>
+    <el-dropdown-menu slot="dropdown">
+      <el-dropdown-item command="zh" :disabled="language==='zh'">中文</el-dropdown-item>
+      <el-dropdown-item command="en" :disabled="language==='en'">English</el-dropdown-item>
+    </el-dropdown-menu>
+  </el-dropdown>
+</template>
+
+<script>
+export default {
+  computed: {
+    language() {
+      return this.$store.getters.language
+    }
+  },
+  methods: {
+    handleSetLanguage(lang) {
+      this.$i18n.locale = lang
+      this.$store.dispatch('setLanguage', lang)
+      this.$message({
+        message: 'switch language success',
+        type: 'success'
+      })
+    }
+  }
+}
+</script>
+
+<style scoped>
+.international-icon {
+  font-size: 20px;
+  cursor: pointer;
+  vertical-align: -5px;
+}
+</style>
+
+