Refactor dialog package.

src/dialogs/AlertDialog.h

@@ -10,15 +10,15 @@ class AlertDialog :public GUIFormBaseDialog{
     Q_OBJECT
 public:
     explicit AlertDialog(QWidget *parent = nullptr, Qt::WindowFlags f = Qt::WindowFlags());
-    ~AlertDialog();
+    ~AlertDialog() override = default;
     void setAlertMessage(const QString& msg);
     void setTitle(const QString& msg);
 protected:
     bool updateReferenceData() override{return true;}
 
 private:
-    QLabel* lbl_msg;
-    QLabel* lbl_title;
+    QLabel* mLblMsg;
+    QLabel* mLblTitle;
 };