Enabled dragging down from the lock screen when bypassing

The pulseExpansionHandler now also works on the lockscreen.
This also delays the bypass when the user is currently
dragging down.

Bug: 134094877
Bug: 130327302
Test: atest SystemUITests
Change-Id: I8d5b5b53e9a68e08933866df6831ecbada41ce43
8 files changed