Align the lockscreen shortcuts haptics with the animation

The math for `vibrationDelayMs` was slightly off due to order of operations.

Bug: b/280825875
Test: manual - tap (not long-press) a lockscreen shortcut, and feel that the vibration starts and ends at the same time as the shake animation.
Change-Id: I616e99c484b4509d2a526ab5cd6a2612c93d52a2