feat(typography): use dns-prefetch and preconnect to improve font load time

Author: talha131

templates/base.html

@@ -4,6 +4,10 @@
         <meta charset="utf-8">
         <meta http-equiv="X-UA-Compatible" content="IE=edge">
         <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <link href="https://fonts.googleapis.com/css?family=PT+Mono|PT+Sans|PT+Serif|PT+Serif+Caption&display=swap" rel="stylesheet">
+        <link rel="dns-prefetch" href="//fonts.googleapis.com">
+        <link rel="preconnect" href="https://fonts.gstatic.com/" crossorigin>
+
         {% if CLAIM_GOOGLE %}
         {% include '_includes/claim_google.html' with context %}
         {% endif %}