handle
Handles a Live Activity notification click from the background.
Call this from Activity.onCreate() and Activity.onNewIntent() alongside handleBackgroundNotificationClick.
When the click carries a deep link it is opened through notificationHandler (the same routing used for regular push clicks) unless openDeepLink is false — pass false to handle the returned link yourself.
Return
The deep link string if this was a Live Activity click, null otherwise.
Parameters
intent
The intent received by the activity.
open
Whether the SDK should open the deep link itself.