Fix some deprecation warnings in WM Shell.

Also, it seems like the vibrate call was always broken by conflating
effect IDs with durations. Fixed that, which should hopefully provide a
better haptics experience.

Move things to use more Kotlin idioms along the way as well.

Bug: 177652618
Test: manual
Change-Id: I057989eab8f6728953c2c4f0d7489a5aa0e9bf2d