Merge "Adds aconfig flag for Lifetime Extension into NMS" into main

        "(containing the \"Clear all\" button). Should not bring any behavior changes"

    bug: "293167744"

}

flag {

    name: "notification_lifetime_extension_refactor"

    namespace: "systemui"

    description: "Enables moving notification lifetime extension management from SystemUI to "

        "Notification Manager Service"

    bug: "299448097"

}