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/jailbrokenwidget.cpp

@@ -22,6 +22,7 @@
 #include <QVBoxLayout>
 #include <QWidget>
 
+// TODO: theming is broken
 JailbrokenWidget::JailbrokenWidget(QWidget *parent) : QWidget{parent}
 {
     QHBoxLayout *mainLayout = new QHBoxLayout(this);