Tweaks to opening app window animation.

We decrease the the durations for the downward app launch animations (by 80%)
except for the scale animation.

We do this because we want the window to reach the center faster so that the
window never goes off screen as it scales up.

Bug: 78891245

Change-Id: I6ece6ee1f01d32f2fcee42bba6a99c72b82f9023