Update favicon to higher-resolution version (#1366)

Author: jacobgkau

nuxt.config.js

@@ -42,7 +42,7 @@ export default async () => ({
     ],
 
     link: [
-      { rel: 'icon', type: 'image/x-icon', href: '/favicon.ico' }
+      { rel: 'icon', type: 'image/png', href: '/favicon.png' }
     ],
 
     script: [