chore: add twitter meta

Author: battlesquid

packages/app/index.html

@@ -11,6 +11,7 @@
     <meta property="og:url" content="/">
     <meta property="og:image" content="/og_banner.png">
     <meta property="og:description" content="Your Contribution Story in 3D">
+    <meta name="twitter:card" content="summary_large_image"></meta>
     <link rel="preconnect" href="https://fonts.googleapis.com">
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
     <link