Fix all apps key

The all apps key currently dispatches an intent; however, this
intent is no longer received by the launcher; the Meta key uses
an accessibility feature in order to trigger it directly.

This intent is still being used in TV, so this CL will keep the
current functionality for TV, and use the new one for the other
platforms.

Bug: 348371690
Test: Flashed on device, adb shell input keyevent ALL_APPS
Flag: EXEMPT bugfix
Change-Id: Ib266618dd2cd040f128b65e2d98bdbe91da6bc84