Server render the main page

Also, add hashes to asset file names and use the "entry manifest" plugin
in dev to get auto-reloading.

modules/client/autoIndex.js

@@ -1,10 +1,26 @@
-// import './autoIndex.css';
-
 import React from 'react';
 import ReactDOM from 'react-dom';
+import { Global, css } from '@emotion/core';
 
 import App from './autoIndex/App';
 
+const globalStyles = css`
+  body {
+    font-size: 14px;
+    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
+      Helvetica, Arial, sans-serif;
+    line-height: 1.7;
+    padding: 0px 10px 5px;
+    color: #000000;
+  }
+`;
+
 const props = window.__DATA__ || {};
 
-ReactDOM.hydrate(<App {...props} />, document.getElementById('root'));
+ReactDOM.hydrate(
+  <div>
+    <Global styles={globalStyles} />
+    <App {...props} />
+  </div>,
+  document.getElementById('root')
+);