Add App Service launcher for Chrome app Kiosk

When KioskEnableAppService feature is enabled, launch Chrome apps in
Kiosk with App Service. In this way AppKM will be able to log per-app
metrics in Kiosk sessions for better monitoring.

DD: go/app-service-kiosk

Bug: b:240493670
Change-Id: Iec7ab06044b7abefd43ce98d2205c4f7f3010250
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3815330
Commit-Queue: Yi Xie <yixie@chromium.org>
Reviewed-by: Ben Franz <bfranz@chromium.org>
Reviewed-by: Nancy Wang <nancylingwang@chromium.org>
Reviewed-by: Polina Bondarenko <pbond@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1033400}