perf(components): 添加 v-memo指令以优化性能

- 在 AppFooter 组件中，为最外层 div 添加 v-memo="[active]" 指令- 在 AppHeader 组件中，为 VanNavBar 组件添加 v-memo="[title, fullLive, showLeftArrow, subTitle]" 指令
- 移除了 AppHeader 组件中的 console.log 语句

app/components/AppFooter.vue

@@ -18,7 +18,7 @@ onMounted(()=>{
 </script>
 
 <template>
- <div v-if="show">
+ <div v-if="show" v-memo="[active]" >
    <van-tabbar  v-model="active" route placeholder fixed>
      <van-tabbar-item replace to="/">
        <span>{{ $t('tabbar.home') }}</span>

app/components/AppHeader.vue

@@ -30,13 +30,12 @@ const subTitle = computed(() => {
   return route.meta.subTitle ? t(route.meta.subTitle) : ''
 })
 const showLeftArrow = computed(() => route.name && routeWhiteList.includes(route.name))
-console.log('route.meta.i18n',route.meta.i18n)
-console.log('t(route.meta.i18n)',route.meta.i18n)
-console.log('route.meta.title',route.meta.title)
+
 </script>
 
 <template>
   <VanNavBar
+      v-memo="[title,fullLive,showLeftArrow,subTitle]"
     :title="title"
     :left-arrow="!showLeftArrow||fullLive"
     placeholder clickable fixed