feat: make MultyMessageDialog message show in the WarningMessageWidget.

src/dialogs/MultyMessageDialogManager.h

@@ -18,6 +18,9 @@ public:
 private slots:
     void removeDestoryedDialog();
 
+signals:
+    void warningMessageAdded(const QString& aWarningMessage);
+
 private:
     MultyMessageDialogManager();
     ~MultyMessageDialogManager();