fix: 更新viewport元标签以限制缩放

index.html

@@ -2,7 +2,7 @@
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
     <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
     <title>登录</title>
   </head>