feat：更新logo图表

public/index.html

@@ -5,7 +5,7 @@
   <meta charset="utf-8">
   <meta http-equiv="X-UA-Compatible" content="IE=edge">
   <meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,minimum-scale=1,user-scalable=no">
-  <link rel="icon" href="<%= BASE_URL %>logo.ico">
+  <link rel="icon" href="<%= BASE_URL %>logo.png">
   <title>无尽藏</title>
 </head>