message: Docs: Remove Vue School BTS 21 banner
diff: <template>
  - <div class="main-container" :class="{ 'has-top-banner': showTopBanner }">
  - <BannerTop v-if="showTopBanner" @close="closeBannerTop" />
  + <div class="main-container">
  <ParentLayout>
  <template #sidebar-top>
  <div class="sponsors sponsors-top">
  @@ -42,31 +41,16 @@ import { defineAsyncComponent } from 'vue'
  import DefaultTheme from 'vitepress/dist/client/theme-default'
  import sponsors from '../components/sponsors.json'
  -const BannerTop = defineAsyncComponent(() =>
  - import('../components/BannerTop.vue')
  -)
  -
  export default {
  name: 'Layout',
  components: {
  - ParentLayout: DefaultTheme.Layout,
  - BannerTop,
  + ParentLayout: DefaultTheme.Layout
  },
  data() {
  return {
  - sponsors,
  - showTopBanner: false,
  + sponsors
  + }
  }
  - },
  - mounted() {
  - this.showTopBanner = !localStorage.getItem('VS_BTS_BANNER_CLOSED')
  - },
  - methods: {
  - closeBannerTop() {
  - this.showTopBanner = false
  - localStorage.setItem('VS_BTS_BANNER_CLOSED', 1)
  - },
  - },
  }
  </script>
  