Use AppSwitcher in Topbar. Now, that the AppSwitcher is inside of the Topbar, it can be made horizontal, and it can use the styles for a horizontal switcher. The styles for icons in the left-layout-aside.css are no longer needed,
because the other switcher doesn't display any icons.
• przemek michal bartek
- rCOMM5c087ebe0ed8: [web] Use app switcher in the topbar
use Topbar in App component, check that it displayes correctly.