MauiKit 3 migration

This issue is open to organizing the migration to MauiKit 2 and as a way for people interested in the project to jump in and help to allow them to get to know better the source code.

Since we now have Maui 2 being released, the idea is to bump mauikit frameworks to Qt 6, when doing this a few steps are needed and can help improve the project:

1. Check the control API for spelling
2. Check that the control format follows the Maui QML standard: ID - Own properties - New properties - signals - implementation - background - connections - functions
3. Add missing inline documentation to properties and functions
4. Check and test the API behavior
5. Add a simple example using the control under examples/controlName/example.qml
6. Move the control to the controls/ root directory if it is in the labs
7. Register the new control to mauikit.cpp and mauikit.qrc using the Qt6 versionless
8. Open a MR