v0.5.1

Key Highlights

• Added cut-out controls for slabs and ceilings
• Improved thumbnails and reduced editor rerenders
• Fixed viewer post-processing recovery after duplicate scene mutations
• Guarded against null selected item during item tool placement

New Features

• Added cut-out button to floating action menu for slabs and ceilings
• Improved thumbnails generation
• Added support for stairs fence updates

Full Release Notes

## BUG fixes

#48