feat: 添加文章标签和更新日期信息显示

docs/.vitepress/theme/index.mjs

@@ -1,4 +1,8 @@
 import DefaultTheme from 'vitepress/theme';
+import CustomLayout from './layout/CustomLayout.vue';
 import './style/custom.less';
 
-export default DefaultTheme;
+export default {
+  extends: DefaultTheme,
+  Layout: CustomLayout,
+};