Fix Docs layout: theme in zh-tw (#2100)

docs/src/pages/zh-TW/themes.astro

@@ -5,6 +5,7 @@ import {Markdown} from 'astro/components';
 import themes from '../../data/themes.json';
 import components from '../../data/components.json';
 ---
+<Layout content={{title: '佈景主題'}} hideRightSidebar>
     <style>
         .card-grid {
             display: grid;
@@ -14,7 +15,6 @@ import components from '../../data/components.json';
             grid-template-columns: repeat(auto-fit,minmax(300px,1fr))
         }
     </style>
-<Layout content={{title: 'Themes'}} hideRightSidebar>
     <Markdown>
         ## 精選佈景主題
     </Markdown>