Allow trayicon without server

This adds support for starting the trayicon even if there is no server.

The trayicon will start up in a disconnected state and stay like that until it manages to connect.

This fixes Support TrayIcon running with no connection	#5993

Duplicati/GUI/Duplicati.GUI.TrayIcon/HttpServerConnection.cs

@@ -102,7 +102,7 @@ namespace Duplicati.GUI.TrayIcon
         private long m_lastDataUpdateId = -1;
         private bool m_disableTrayIconLogin;
 
-        private volatile IServerStatus m_status;
+        private volatile IServerStatus m_status = new ServerStatusImpl(LiveControlState.Paused, SuggestedStatusIcon.Disconnected, 0, 0, 0);
 
         private volatile bool m_shutdown = false;
         private volatile Thread m_requestThread;

Duplicati/GUI/Duplicati.GUI.TrayIcon/Program.cs

@@ -214,10 +214,8 @@ No password provided, unable to connect to server, exiting");
                         ServicePointManager.SecurityProtocol = SecurityProtocolType.SystemDefault;
                         using (Connection = new HttpServerConnection(serverURL, password, passwordSource, disableTrayIconLogin, acceptedHostCertificate, options))
                         {
-                            // Make sure we have the latest status
-                            // This will throw an exception if the server is not running,
-                            // or the password is incorrect
-                            Connection.UpdateStatus().Await();
+                            // Make sure we have the latest status, but don't care if it fails
+                            Connection.UpdateStatus().FireAndForget();
 
                             using (var tk = RunTrayIcon())
                             {