Add Go Live to header dropdown

static/app-strings.json

@@ -1172,6 +1172,7 @@
   "Try out the app!": "Try out the app!",
   "Download the app to track files you've viewed and downloaded.": "Download the app to track files you've viewed and downloaded.",
   "Create a new channel": "Create a new channel",
+  "Go Live": "Go Live",
   "Thumbnail source": "Thumbnail source",
   "Cover source": "Cover source",
   "Your changes will be live in a few minutes": "Your changes will be live in a few minutes",

ui/component/header/view.jsx

@@ -422,6 +422,10 @@ function HeaderMenuButtons(props: HeaderMenuButtonProps) {
               <Icon aria-hidden icon={ICONS.CHANNEL} />
               {__('New Channel')}
             </MenuItem>
+            <MenuItem className="menu__link" onSelect={() => history.push(`/$/${PAGES.GO_LIVE}`)}>
+              <Icon aria-hidden icon={ICONS.VIDEO} />
+              {__('Go Live')}
+            </MenuItem>
           </MenuList>
         </Menu>
       )}

ui/constants/pages.js

@@ -48,3 +48,4 @@ exports.BUY = 'buy';
 exports.CHANNEL_NEW = 'channel/new';
 exports.NOTIFICATIONS = 'notifications';
 exports.YOUTUBE_SYNC = 'youtube';
+exports.GO_LIVE = 'livestream';