* Fix pen tool (except overlays)
* Thumbnail of only the layer and not the composite
* Fix occasional transform breakages
* Constrain size of thumbnail
* Insert new layers at the top
* Broken layer tree
* Fix crash when drawing
* Reduce calls to send graph
* Reduce calls to updating properties
* Store cached transforms upon the document
* Fix missing node UI updates
* Fix fill tool and clean up imports and indentation
* Error on overide existing layer
* Fix pen tool (partially)
* Fix some lints
* Renamed VectorAnchor, VectorShape and VectorControlPoint. Also fixed other naming inconsistencies.
* Renamed messages relating to vector and updated naming in several tools
* Renamed comments + caught a few areas I had missed.
* Caught a few more incorrect names
* Code review pass
* Review changes
* Fixed warning
* Additional review feedback
Co-authored-by: Keavon Chambers <keavon@keavon.com>