Move the information about these views to separate topics and
describe the differences between using them in Design mode or
in the sidebar.
Change-Id: Ie71edb7d270bf5c4e020f2818f9f8e0e9e505094
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>
