Extend CUJ_LAUNCHER_CLOSE_ALL_APPS_BACK to start as early as when user starts predictive back swipe

Bug: 330405993
Test: prefetto trace https://ui.perfetto.dev/#!/?s=58c0513fe0190f84ea1621a96d790a53b83fefc1ee402085b0d75bfc7b51e019
Flag: aconfig com.android.launcher3.enable_predictive_back_gesture TEAMFOOD
Change-Id: I76c32975e5ae6dcb0395d2eee68417f761455262
5 files changed