add toolbox network devices & enhance UI with new icons

- Added new icons to resources.qrc for improved UI representation.
- Implemented ZIconWidget for buttons in AfcExplorerWidget, replacing ClickableIconWidget.
- Introduced NetworkDevicesWidget for discovering and monitoring network devices.
- Updated AppInstallDialog to use QTemporaryDir for better temporary directory management.
- Enhanced FileExportDialog to prompt user for opening the export directory upon completion.
- Refactored styles in various widgets for consistency and improved theming support.
- Cleaned up unused code and comments across multiple files.

src/networkdeviceswidget.h

@@ -0,0 +1,49 @@
+#ifndef NETWORKDEVICESWIDGET_H
+#define NETWORKDEVICESWIDGET_H
+
+#ifdef __linux__
+#include "core/services/avahi/avahi_service.h"
+#else
+#include "core/services/dnssd/dnssd_service.h"
+#endif
+
+#include <QGroupBox>
+#include <QLabel>
+#include <QScrollArea>
+#include <QVBoxLayout>
+#include <QWidget>
+
+class NetworkDevicesWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit NetworkDevicesWidget(QWidget *parent = nullptr);
+    ~NetworkDevicesWidget();
+
+private slots:
+    void onWirelessDeviceAdded(const NetworkDevice &device);
+    void onWirelessDeviceRemoved(const QString &deviceName);
+
+private:
+    void setupUI();
+    void createDeviceCard(const NetworkDevice &device);
+    void clearDeviceCards();
+    void updateDeviceList();
+
+    QGroupBox *m_deviceGroup = nullptr;
+    QScrollArea *m_scrollArea = nullptr;
+    QWidget *m_scrollContent = nullptr;
+    QVBoxLayout *m_deviceLayout = nullptr;
+    QLabel *m_statusLabel = nullptr;
+
+#ifdef __linux__
+    AvahiService *m_networkProvider = nullptr;
+#else
+    DnssdService *m_networkProvider = nullptr;
+#endif
+
+    QList<QWidget *> m_deviceCards;
+};
+
+#endif // NETWORKDEVICESWIDGET_H