fix(css): 调整微信图标尺寸以改善布局

public/themes/dist_static/static/css/common.css

@@ -1233,8 +1233,8 @@ body {
   position: relative;
   z-index: 1;
   display: block;
-  width: 7rem;
-  height: 7rem;
+  width: 6.25rem;
+  height: 6.25rem;
   object-fit: contain;
 }
 .site-header__wechat-pop > span {

public/themes/website/1/zh/demo/components/header.html

@@ -60,7 +60,6 @@
                 </span>
                 <span class="site-header__wechat-pop" role="tooltip">
                     <img src="{hcTaglib:setting name='wechat_code' type='2' /}" alt="官方微信" width="120" height="120" />
-                    <span>官方微信</span>
                 </span>
             </span>
             <a class="site-header__social" href="https://v.douyin.com/y7mvLjAkdJ4/" aria-label="抖音" target="_blank">