chore: seo- add title and meta data, social card, sitemap update

Author: abose

src/assets/images/socialcard.png

@@ -39,7 +39,26 @@
     <link rel="mask-icon" href="styles/images/favicons/safari-pinned-tab.svg" color="#da532c">
     <meta name="msapplication-TileColor" content="#47484B">
     <link rel="manifest" href="manifest.json">
+
+    <!-- Primary Meta Tags -->
     <title>Phoenix Code</title>
+    <meta name="title" content="Phoenix Code" />
+    <meta name="description" content="A text editor designed to make coding as intuitive and fun as playing a video game - specially crafted for web developers, designers, and students." />
+
+    <!-- Open Graph / Facebook -->
+    <meta property="og:type" content="website" />
+    <meta property="og:url" content="https://phcode.dev/" />
+    <meta property="og:title" content="Phoenix Code | Code Creatively" />
+    <meta property="og:description" content="A text editor designed to make coding as intuitive and fun as playing a video game - specially crafted for web developers, designers, and students." />
+    <meta property="og:image" content="assets/images/socialcard.png" />
+
+    <!-- Twitter -->
+    <meta property="twitter:card" content="summary_large_image" />
+    <meta property="twitter:url" content="https://phcode.dev/" />
+    <meta property="twitter:title" content="Phoenix Code | Code Creatively" />
+    <meta property="twitter:description" content="A text editor designed to make coding as intuitive and fun as playing a video game - specially crafted for web developers, designers, and students." />
+    <meta property="twitter:image" content="assets/images/socialcard.png" />
+
     <!--    boot-time styles only here-->
     <style>
         .forced-hidden {

src/index.html

@@ -14,24 +14,30 @@ Disallow: /assets/
 # The Omniture search engine can see everything
 User-agent: Atomz/1.0
 Disallow: /assets/
+Disallow: /test/
 
 User-agent: *
 Disallow: /assets/
+Disallow: /test/
 
 User-agent: AdsBot-Google
 Disallow: /assets/
+Disallow: /test/
 
 User-agent: AdsBot-Google-Mobile
 Disallow: /assets/
+Disallow: /test/
 
 User-agent: SearchmetricsBot
 Disallow: /assets/
+Disallow: /test/
 
 User-agent: Googlebot
 Disallow: /assets/
+Disallow: /test/
 
 # XML sitemaps
-Sitemap: https://sitemaps.phcode.io/sitemap-phcode.xml
 Sitemap: https://phcode.dev/sitemap-phcode.xml
+Sitemap: https://sitemaps.phcode.io/sitemap-phcode.xml
 
 # more sitemap urls can be given here, but just 1 for now.