Allow hiding the menu bar icon

closes #40

NearDrop/AppDelegate.swift

@@ -23,6 +23,7 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
 		statusItem=NSStatusBar.system.statusItem(withLength: NSStatusItem.variableLength)
 		statusItem?.button?.image=NSImage(named: "MenuBarIcon")
 		statusItem?.menu=menu
+		statusItem?.behavior = .removalAllowed
 		
 		let nc=UNUserNotificationCenter.current()
 		nc.requestAuthorization(options: [.alert, .sound]) { granted, err in
@@ -39,6 +40,11 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
 		NearbyConnectionManager.shared.mainAppDelegate=self
 		NearbyConnectionManager.shared.becomeVisible()
 	}
+	
+	func applicationShouldHandleReopen(_ sender: NSApplication, hasVisibleWindows flag: Bool) -> Bool {
+		statusItem?.isVisible=true
+		return true
+	}
 
     func applicationWillTerminate(_ aNotification: Notification) {
 		UNUserNotificationCenter.current().removeAllDeliveredNotifications()

NearbyShare/InboundNearbyConnection.swift

@@ -349,7 +349,7 @@ class InboundNearbyConnection: NearbyConnection{
 			currentState = .receivingFiles
 			try sendTransferSetupFrame(frame)
 		}catch{
-			print("Error \(error)")
+			lastError=error
 			protocolError()
 		}
 	}