chore: 升级为 vuepress@2 (#807)

* fix: 修正文档中存在的错误路径，标签和目录

* chore: 升级为 vuepress@2

* fix: vuepress-vite 版本错误

.vuepress/theme/index.js

@@ -1,3 +0,0 @@
-module.exports = {
-    extend: '@vuepress/theme-default'
-}

.vuepress/theme/layouts/Layout.vue

@@ -1,21 +1,18 @@
 <template>
   <ParentLayout>
     <template #page-bottom>
-      <footer style="text-align: center;">
-        Copyright © 2020-2023 <a href="https://github.com/SocialSisterYi/">SocialSisterYi</a> |
-        <a href="https://github.com/SocialSisterYi/bilibili-API-collect/blob/master/LICENSE">CC-BY-NC-4.0 Licensed</a> 
+      <footer style="text-align: center">
+        Copyright © 2020-2023
+        <a href="https://github.com/SocialSisterYi/">SocialSisterYi</a> |
+        <a
+          href="https://github.com/SocialSisterYi/bilibili-API-collect/blob/master/LICENSE"
+          >CC-BY-NC-4.0 Licensed</a
+        >
       </footer>
     </template>
   </ParentLayout>
 </template>
 
-<script>
-import ParentLayout from '@parent-theme/layouts/Layout.vue'
-
-export default {
-  name: 'Layout',
-  components: {
-    ParentLayout
-  }
-}
-</script>
+<script setup>
+import ParentLayout from '@vuepress/theme-default/layouts/Layout.vue';
+</script>