implement qa feedback for closing modals when logging out

src/components/structures/MatrixChat.tsx

@@ -1373,14 +1373,15 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
         cli.on('Session.logged_out', function(errObj) {
             if (Lifecycle.isLoggingOut()) return;
 
+            // A modal might have been open when we were logged out by the server
+            Modal.closeCurrentModal('Session.logged_out');
+
             if (errObj.httpStatus === 401 && errObj.data && errObj.data['soft_logout']) {
                 console.warn("Soft logout issued by server - avoiding data deletion");
                 Lifecycle.softLogout();
                 return;
             }
 
-            Modal.closeCurrentModal("User has been logged out.");
-
             Modal.createTrackedDialog('Signed out', '', ErrorDialog, {
                 title: _t('Signed Out'),
                 description: _t('For security, this session has been signed out. Please sign in again.'),