UI: Fix tray icon menu handling on macOS

UI/window-basic-main.cpp

@@ -7630,10 +7630,12 @@ void OBSBasic::IconActivated(QSystemTrayIcon::ActivationReason reason)
 	AddProjectorMenuMonitors(studioProgramProjector, this,
 				 SLOT(OpenStudioProgramProjector()));
 
+#ifndef __APPLE__
 	if (reason == QSystemTrayIcon::Trigger) {
 		EnablePreviewDisplay(previewEnabled && !isVisible());
 		ToggleShowHide();
 	}
+#endif
 }
 
 void OBSBasic::SysTrayNotify(const QString &text,