Form editor does not restrict components and properties to what is available in QUL

Steps to reproduce

1. Ensure Qt for MCUs is installed
2. Create a MCU project in Qt Creator
3. Set a MCU kit (desktop or real hardware)
4. Assign a valid Qt 5.15 version to the MCU kit
5. Open the main QML file in the design tab (form editor)

Expected result

• The component library only offers types available in QUL
• The property tab grays out the properties that are not available in QUL
• When adding a component module, only QUL modules are offered

Actual result

Everything offered to the user is based on Qt, meaning he might be using something that doesn't exist in QUL.

Note

Qt Design Studio already solved this problem for .qmlproject based projects, but it is not applied to CMake projects in Qt Creator.