Don't hide overlays created by recents component

Launcher (the recents component) can create critical application overlay
windows like taskbar. It is important the user and apps can't hide them
similar to overlay windows created by sys-ui.

Test: Taskbar isn't hidden when you navigate to settings app.
Bug: 169054709
Change-Id: Id2f20a8e721821299c44641fb9e78980f7d281f4