major file refactor - fix disconnecting bug

client/app/pages/NotFound/NotFound.js

@@ -0,0 +1,12 @@
+import React from 'react';
+import './NotFound.scss';
+
+export default class Default extends React.Component {
+    render() {
+        return (
+            <div className="NotFound">
+                404 Not Found
+            </div>
+        );
+    }
+}