initInvitationService method
void
initInvitationService()
initialize the invitation service
Implementation
void initInvitationService(GlobalKey<NavigatorState>? navkeyFromApp, String? webPageFromApp, String rootDomainFromApp,
int rootPortFromApp) async {
navkey = navkeyFromApp;
webPage = webPageFromApp;
rootDomain = rootDomainFromApp;
rootPort = rootPortFromApp;
await startMonitor();
}