Complete rewrite of local state management.

client/src/components/header/header.component.jsx

@@ -1,4 +1,4 @@
-import React, { Component, useState } from "react";
+import React from "react";
 import { Link } from "react-router-dom";
 import { Menu, Icon } from "antd";
 import "./header.styles.scss";
@@ -7,9 +7,9 @@ import SignOut from "../sign-out/sign-out.component";
 export default ({ selectedNavItem, navItems }) => {
   const handleClick = e => {
     console.log("click ", e);
-    this.setState({
-      current: e.key
-    });
+    // this.setState({
+    //   current: e.key
+    // });
   };
 
   return (