message: fix route rendering of NamespaceBar
diff: @@ -77,9 +77,7 @@ const AppContents = withRouter(React.memo(() => (
  <PageSection variant={PageSectionVariants.light}>
  <div id="content">
  <GlobalNotifications />
  - <Route path={namespacedRoutes}>
  - <NamespaceBar />
  - </Route>
  + <Route path={namespacedRoutes} render={() => <NamespaceBar />} />
  <div id="content-scrollable">
  <Switch>
  <Route path={['/all-namespaces', '/ns/:ns']} component={RedirectComponent} />
  