Manually tweak the dismiss spring.

Removes the bounce for non-touch swipes (zero velocity), caps the velocity to prevent excessive bouncing, and changes some other constants.

Bug: 278086361
Test: manual but actually
Flag: com.android.systemui.keyguard_wm_state_refactor
Change-Id: I1f0a814f0833020ce99e132aff90db042c13cf7d