Improve shortcuts for search / listing configuration

In Designer,  when I configure page provider layouts:

• shortcuts are always visible
  • when they can't be used, they are shown as disabled and a contextual info button is available
    • clicking the button opens a help dialog showing

      Configure the [results layout for drawer menu listing / tab] [form and results layout for drawer item search] to activate this option

       

• • when they are activated, they show the + button and you can click on them to trigger the config generation (as we do currently)
• shortcuts show the preview (the one we use in help for the various screens) so that I can tell where I'm going to add some config
• shortcuts are displayed in this order (left to right):
  • drawer item search
  • drawer menu listing
  • tab