message: do not show Nav in mobile view
diff: @@ -446,7 +446,7 @@ class Header extends Component<any, any> {
  <div>
  <Logo />
  </div>
  - <Nav menu={menuItems} />
  + {!isMobile && <Nav menu={menuItems} />}
  <WalletConnect />
  <div styleName="rightArea">
  {window.WPSO_selected_theme !== 'only_light' && window.WPSO_selected_theme !== 'only_dark' && (
  