Added the advanced settings page

- added a button to scan the server for installed containers
- added a check on the presence of installed containers before configuring the server, if the containers are already installed, then we will add them to the GUI
- added new control element - PopupWarning.qml

client/ui/pages_logic/AdvancedServerSettingsLogic.h

@@ -0,0 +1,30 @@
+#ifndef ADVANCEDSERVERSETTINGSLOGIC_H
+#define ADVANCEDSERVERSETTINGSLOGIC_H
+
+#include "PageLogicBase.h"
+
+class UiLogic;
+
+class AdvancedServerSettingsLogic : public PageLogicBase
+{
+    Q_OBJECT
+
+    AUTO_PROPERTY(bool, labelWaitInfoVisible)
+    AUTO_PROPERTY(QString, labelWaitInfoText)
+
+    AUTO_PROPERTY(QString, pushButtonClearText)
+    AUTO_PROPERTY(bool, pushButtonClearVisible)
+
+    AUTO_PROPERTY(QString, labelServerText)
+    AUTO_PROPERTY(QString, labelCurrentVpnProtocolText)
+
+public:
+    explicit AdvancedServerSettingsLogic(UiLogic *uiLogic, QObject *parent = nullptr);
+    ~AdvancedServerSettingsLogic() = default;
+
+    Q_INVOKABLE void onUpdatePage() override;
+
+    Q_INVOKABLE void onPushButtonClearServer();
+};
+
+#endif // ADVANCEDSERVERSETTINGSLOGIC_H