refactor(starter): upgrade and move to typescript

src/templates/PostTemplate/__snapshots__/PostTemplate.test.tsx.snap

@@ -1,62 +1,39 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
 exports[`PostTemplate renders correctly 1`] = `
-<div
-  className="layout"
->
-  <div
-    className="post"
-  >
+<div>
+  <div>
     <a
-      className="post__home-button"
       href="/"
     >
       All Articles
     </a>
-    <div
-      className="post__content"
-    >
-      <div
-        className="content"
-      >
-        <h1
-          className="content__title"
-        >
+    <div>
+      <div>
+        <h1>
           Perfecting the Art of Perfection
         </h1>
         <div
-          className="content__body"
           dangerouslySetInnerHTML={
             Object {
-              "__html": "",
+              "__html": "<p>An Essay on Typography by Eric Gill takes the reader back to the year 1930. The year when a conflict between two worlds came to its term. The machines of the industrial world finally took over the handicrafts.</p>",
             }
           }
         />
       </div>
     </div>
-    <div
-      className="post__footer"
-    >
-      <div
-        className="meta"
-      >
-        <p
-          className="meta__date"
-        >
+    <div>
+      <div>
+        <p>
           Published
            
           Sep 1, 2016
         </p>
       </div>
-      <div
-        className="author"
-      >
-        <p
-          className="author__bio"
-        >
+      <div>
+        <p>
           Pellentesque odio nisi, euismod in, pharetra a, ultricies in, diam. Sed arcu.
           <a
-            className="author__bio-twitter"
             href="https://www.twitter.com/#"
             rel="noopener noreferrer"
             target="_blank"
@@ -69,9 +46,7 @@ exports[`PostTemplate renders correctly 1`] = `
         </p>
       </div>
     </div>
-    <div
-      className="post__comments"
-    />
+    <div />
   </div>
 </div>
 `;