Add swipe up onboarding from apps

After launching 3 apps, we create a window at the bottom
attached to the nav bar to teach users to swipe for recents.
There is an X on this window to dismiss it, but we will keep
showing the onboarding every time they open apps until they
perform the swipe up action.

Test: manual

Bug: 70180942
Change-Id: I4b15fac918b7b1633a3c09ab0819f2acb1dce697