Adds initial intermediate qt6 porting state

qt6-after/qt6-migrated-legatus/Lts/Common/LtsAppManager/AppChooser/CustomViews/app.h

@@ -0,0 +1,30 @@
+
+
+#pragma once
+
+#include <Viewer/LtsDataView/abstract_display_widget.h>
+
+
+namespace Ui
+{
+class CustomViewApp;
+}
+
+namespace LtsAppManager
+{
+
+class CustomViewApp final : public LtsDataView::AbstractDisplayWidget
+{
+  Q_OBJECT
+
+public:
+  explicit CustomViewApp(QWidget *parent = nullptr);
+  ~CustomViewApp();
+  bool init(const QModelIndex &idx) override;
+
+private:
+  Ui::CustomViewApp* m_ui;
+
+};
+
+}