Add setTitle to AlertDialog

src/AlertDialog.h

@@ -12,11 +12,13 @@ public:
     explicit AlertDialog(QWidget *parent = nullptr, Qt::WindowFlags f = Qt::WindowFlags());
     ~AlertDialog();
     void setAlertMessage(const QString& msg);
+    void setTitle(const QString& msg);
 protected:
     bool updateReferenceData() override{return true;}
 
 private:
     QLabel* lbl_msg;
+    QLabel* lbl_title;
 };