CMake Exporter does not export Quick3D correctly

When exporting an example project which uses Quick3D:

https://git.qt.io/public-demos/qtdesign-studio/-/tree/effectComposerExample

The Cmake exporter does not take the Quick3D models and meshes into the flow.

The project was done with Qt DS 4.5 originally.

Steps to reproduce

1. Enable Cmake creation from menu
2. Save the project in Qt DS
3. Open the project in Qt Creator with Qt 6.8 kit
4. Run Cmake
5. Compile

Expected result:

• Project runs OK

Actual result:

• Project runs but there are no Quick3D assets found on the screen