Merge pull request #1559 from mattermost/plt-510

PLT-510 Updated OAuth2 app register modal

web/react/utils/constants.jsx

@@ -49,7 +49,8 @@ export default {
         TOGGLE_IMPORT_THEME_MODAL: null,
         TOGGLE_INVITE_MEMBER_MODAL: null,
         TOGGLE_DELETE_POST_MODAL: null,
-        TOGGLE_GET_TEAM_INVITE_LINK_MODAL: null
+        TOGGLE_GET_TEAM_INVITE_LINK_MODAL: null,
+        TOGGLE_REGISTER_APP_MODAL: null
     }),
 
     PayloadSources: keyMirror({