add prettier and format all

components/Layout.tsx

@@ -1,14 +1,12 @@
-import React from 'react';
+import React from 'react'
 
-import Header from './Header';
+import Header from './Header'
 
-export default function(props) {
+export default function (props) {
   return (
     <div id="app">
       <Header />
-      <div id="content">
-        { props.children }
-      </div>
+      <div id="content">{props.children}</div>
     </div>
-  );
+  )
 }