fix style and favicon

site/theme/static/header.less

@@ -1,4 +1,5 @@
 @header-height: 64px;
+@menu-item-border: 2px;
 
 #header {
   transition: opacity 0.5s;
@@ -91,19 +92,19 @@
 
     & > .ant-menu-item {
       height: @header-height;
-      line-height: @header-height;
+      line-height: @header-height - @menu-item-border * 2;
       min-width: 72px;
-      border-top: 2px solid transparent;
+      border-top: @menu-item-border solid transparent;
 
       &:hover {
-        border-top: 2px solid @primary-color;
-        border-bottom: 2px solid transparent;
+        border-top: @menu-item-border solid @primary-color;
+        border-bottom: @menu-item-border solid transparent;
       }
     }
 
     & > .ant-menu-item-selected {
-      border-top: 2px solid @primary-color;
-      border-bottom: 2px solid transparent;
+      border-top: @menu-item-border solid @primary-color;
+      border-bottom: @menu-item-border solid transparent;
       a {
         color: @primary-color;
       }

site/theme/static/template.html

@@ -57,7 +57,7 @@
       document.documentElement.className += isZhCN(pathname) ? 'zh-cn' : 'en-us';
     })()
     </script>
-    <link rel="icon" href="https://gw.alipayobjects.com/zos/rmsportal/KDpgvguMpGfqaHPjicRK.svg" type="image/x-icon">
+    <link rel="icon" href="https://gw.alipayobjects.com/zos/rmsportal/rlpTLlbMzTNYuZGGCVYM.png" type="image/x-icon">
     <link rel="stylesheet" type="text/css" href="{{ root }}index-1.css"/>
     <link rel="stylesheet" type="text/css" href="{{ root }}index-2.css"/>
     <link rel="stylesheet/less" type="text/css" href="{{ root }}color.less"/>