style：app分享页面顶部栏背景色

src/jfw/modules/app/src/web/templates/frontRouter/share/sess/index.html

@@ -19,6 +19,9 @@
     rel="stylesheet"
     href='{{Cdns .Host "seo" "cdn"|SafeUrl}}/jyapp/share/css/index.css?v={{Msg "seo" "version"}}'
   />
+  <style>
+    .j-header.jy-app-header{background: #fff;}
+  </style>
   {{include "/common/js.html"}}
 </head>