3D Editor: Grid, camera frustum, light meshes and component selection boxes missing in latest snapshot

Tested with the latest Qt 6.2 based snapshot, build number 25

• Create/open a project
• Add QtQuick3D module
• Open 3D Editor
• -> Cannot see grid even when visibilyty is toggled
• Drag and drop view3D to Navigator
• Click camera
• -> no frustum visible in 3D Editor
• Click light
• -> no mesh for light visible in 3D Editor
• Click cube
• -> no selection box shown around the cube