Add prominent upgrade button when upgrade is pending

ui/js/component/header/index.js

@@ -1,6 +1,7 @@
 import React from "react";
 import { formatCredits } from "util/formatCredits";
 import { connect } from "react-redux";
+import { selectUpgradeSkipped } from "selectors/app";
 import {
   selectIsBackDisabled,
   selectIsForwardDisabled,
@@ -19,8 +20,8 @@ const select = state => ({
   isForwardDisabled: selectIsForwardDisabled(state),
   balance: formatCredits(selectBalance(state) || 0, 1),
   publish: __("Publish"),
-  upgrade: __("Upgrade"),
-  upgradeSkipped: true,
+  upgradeLabel: __("Upgrade App"),
+  upgradeSkipped: selectUpgradeSkipped(state),
 });
 
 const perform = dispatch => ({

ui/js/component/header/view.jsx

@@ -80,17 +80,18 @@ export const Header = props => {
           title={__("Settings")}
         />
       </div>
-      <rem>HEY I'M HER E</rem>
-      {upgradeSkipped
-        ? <div className="header__item">
+      {upgradeSkipped ? (
+        <div className="header__item">
           <Link
             onClick={() => downloadUpgrade()}
             button="primary button--flat"
-              icon="icon-upload"
+            icon="icon-arrow-up"
             label={upgradeLabel}
           />
         </div>
-        : ""}
+      ) : (
+        ""
+      )}
     </header>
   );
 };