add collapsedRhs to propTypes

src/components/structures/LoggedInView.js

@@ -62,7 +62,7 @@ const LoggedInView = React.createClass({
         // Called with the credentials of a registered user (if they were a ROU that
         // transitioned to PWLU)
         onRegistered: PropTypes.func,
-
+        collapsedRhs: PropTypes.bool,
         teamToken: PropTypes.string,
 
         // Used by the RoomView to handle joining rooms

src/components/views/right_panel/HeaderButtons.js

@@ -18,6 +18,7 @@ limitations under the License.
 */
 
 import React from 'react';
+import PropTypes from 'prop-types';
 import dis from '../../../dispatcher';
 
 export default class HeaderButtons extends React.Component {
@@ -77,3 +78,7 @@ export default class HeaderButtons extends React.Component {
         </div>;
     }
 }
+
+HeaderButtons.propTypes = {
+    collapsedRhs: PropTypes.bool,
+};