Centrally document support for Qt versions

Qt Design Studio documentation could better document which target Qt versions it actually supports. There's an explicit page about this for Qt for MCU, could we have the same for Qt Framework/Qt Quick?

Looking for traces

• https://doc-snapshots.qt.io/qtdesignstudio/studio-3d-custom-effects-materials.html talks about custom effects and materials in Qt 5 (though the first paragraph references 'previous Qt Design Studio versions built with Qt 5 and Qt 5.15.', which might imply that the feature is not available in the latest version? This could be more explicit though, or the page entirely removed)
• CMake generator sets Qt 6.3 as minimum Qt version.