feat: Add progress in system correction page while empty scan data transfering.

src/forms/settings/SystemCorrectionForm.h

@@ -4,6 +4,7 @@
 #include <QWidget>
 
 class QLabel;
+class QTimer;
 
 class SystemCorrectionForm : public QWidget
 {
@@ -15,13 +16,21 @@ public:
 
 private:
     void init();
+    QString getStateString(int aState);
 
 private slots:
     void updateEmptyScanDate();
+    void updateEmptyScanState();
+    void updateEmptyScanTransferProgress();
+    void updateEmptyScanDateExpire();
+    void updateEmptyScanBroked();
 
 private:
     QLabel* mCurrentEmptyScanDate;
     QLabel* mExpirationEmptyScanDate;
+    QLabel* mCurrentEmptyScanState;
+    QTimer* mTimer;
+    int mEmptyScanState;
 };
 
 #endif // SYSTEMCORRECTIONFORM_H