fix: fixed system tray open site link (#1686)

* added signal-slot connection between corecontroller and systemtraynofificationhandler updating websiteurl

* cleared up the commented lines

client/core/controllers/coreController.h

@@ -5,6 +5,8 @@
 #include <QQmlContext>
 #include <QThread>
 
+#include "ui/systemtray_notificationhandler.h"
+
 #include "ui/controllers/api/apiConfigsController.h"
 #include "ui/controllers/api/apiSettingsController.h"
 #include "ui/controllers/api/apiPremV1MigrationController.h"
@@ -61,6 +63,7 @@ public:
 
 signals:
     void translationsUpdated();
+    void websiteUrlChanged(const QString &newUrl);
 
 private:
     void initModels();