Add Settings window to Agent UI

Agent systray UI has been extended with
a setting window that allows configuring 
management URL, admin URL and 
supports pre-shared key.
While for the Netbird managed version 
the Settings are not necessary, it helps
to properly configure the self-hosted version.

client/cmd/service_controller.go

@@ -54,7 +54,7 @@ func (p *program) Start(svc service.Service) error {
 			}
 		}
 
-		serverInstance := server.New(p.ctx, managementURL, configPath)
+		serverInstance := server.New(p.ctx, managementURL, adminURL, configPath, logFile)
 		if err := serverInstance.Start(); err != nil {
 			log.Fatalf("failed start daemon: %v", err)
 		}