Moves to monitoring changes in scene phase

Multiplatform/Shared/SceneNavigationView.swift

@@ -16,6 +16,7 @@ struct SceneNavigationView: View {
 	
 	#if os(iOS)
 	@Environment(\.horizontalSizeClass) private var horizontalSizeClass
+	@Environment(\.scenePhase) private var scenePhase
 	#endif
 	
 	var body: some View {
@@ -62,6 +63,13 @@ struct SceneNavigationView: View {
 		.onChange(of: sheetToShow) { value in
 			value != .none ? (showSheet = true) : (showSheet = false)
 		}
+		.onChange(of: scenePhase) { newPhase in
+			if newPhase == .background {
+				#if os(iOS)
+				WidgetDataEncoder.encodeWidgetData()
+				#endif
+			}
+		}
 		.toolbar {
 			
 			#if os(macOS)