name	common	difference
@StateObject	1) the variable comforms to ObservableObject 2) get reset when app relaunch	1) will exists even if the view using the @StateObject gets destructed.
@EnvironmentObject	1) the variable comforms to ObservableObject 2) get reset when app relaunch	1) global
@ObservedObject	1) the variable comforms to ObservableObject 2) get reset when app relaunch	1) will not exists when the view using @ObservedObject gets destructed.
@SceneStorage
@AppStorage	1) wrap UserDefaults	1) will not reset when app relaunch 2) reset when app reinstall