Update tutorial channel names to reflect actual display names

webapp/utils/constants.jsx

@@ -191,7 +191,9 @@ export default {
     MOBILE_VIDEO_WIDTH: 480,
     MOBILE_VIDEO_HEIGHT: 360,
     DEFAULT_CHANNEL: 'town-square',
+    DEFAULT_CHANNEL_UI_NAME: 'Town Square',
     OFFTOPIC_CHANNEL: 'off-topic',
+    OFFTOPIC_CHANNEL_UI_NAME: 'Off-Topic',
     GITLAB_SERVICE: 'gitlab',
     GOOGLE_SERVICE: 'google',
     EMAIL_SERVICE: 'email',