implement settings, fix bugs and enhance ui

- Added new settings keys in SettingsManager for download path, auto-check updates, auto-raise window, switch to new device, unmount iFuse on exit, theme, and connection timeout.
- Implemented methods to get and set these new settings.
- Updated SettingsWidget to include UI elements for the new settings, including checkboxes and a combo box for theme selection.
- Refactored loadSettings and saveSettings methods to handle new settings.
- Removed deprecated settings UI elements to streamline the interface.
- Introduced VirtualLocation widget for managing virtual location settings with a map interface.
- Integrated QML for map visualization and input handling for latitude and longitude.
- Added functionality to apply virtual location settings to the connected device.

src/devdiskimagehelper.h

@@ -0,0 +1,55 @@
+#ifndef DEVDISKIMAGEHELPER_H
+#define DEVDISKIMAGEHELPER_H
+
+#include "iDescriptor.h"
+#include <QDialog>
+#include <QLabel>
+#include <QPushButton>
+#include <QWidget>
+
+class QProcessIndicator;
+
+class DevDiskImageHelper : public QDialog
+{
+    Q_OBJECT
+public:
+    explicit DevDiskImageHelper(iDescriptorDevice *device,
+                                QWidget *parent = nullptr);
+
+    // Start the mounting process
+    void start();
+
+signals:
+    void mountingCompleted(bool success);
+    void downloadStarted();
+    void downloadCompleted(bool success);
+
+private slots:
+    void checkAndMount();
+    void onMountButtonClicked();
+    void onRetryButtonClicked();
+    void onImageDownloadFinished(const QString &version, bool success,
+                                 const QString &errorMessage);
+
+private:
+    void setupUI();
+    void showStatus(const QString &message, bool isError = false);
+    void showMountUI();
+    void showRetryUI(const QString &errorMessage);
+    void finishWithSuccess();
+    void finishWithError(const QString &errorMessage);
+
+    iDescriptorDevice *m_device;
+
+    QLabel *m_statusLabel;
+    QProcessIndicator *m_loadingIndicator;
+    QPushButton *m_mountButton;
+    QPushButton *m_retryButton;
+    QPushButton *m_cancelButton;
+
+    bool m_isDownloading;
+    bool m_isMounting;
+    QString m_downloadingVersion;
+};
+
+#endif // DEVDISKIMAGEHELPER_H