Kill on destroy

[mattveraldi]

Hi,
I needed to add this behaviour to my react-native app, so I implemented this notificationConfig.
Feel free to merge it if you think it's useful.
Best regards.

[hazelf42]

+1 would like this added

[esinanturan]

@mattveraldi It's killing the notification but when I checked the app status on the app info it seems app still working in the background and the option 'force stop' is available. And I checked it starting the service causing this without foreground service when I kill the app there is no 'force stop' option available. I think it's not exactly killing the service.
I had to add

android.os.Process.killProcess(android.os.Process.myPid());
System.exit(0);

to the onHostDestroy method of the module