New overlay system (#1516)

* Port gradient tool overlays

* Fix tests

* Text tool

* Artboard tool and some of select tool

* Port select tool drawing box

* Pen and path tool

* Remove overlays document

* Show the overlay refactor as done on the website roadmap

* Select tool bounds in layer space (first layer)

* Code review and fixes

---------

Co-authored-by: Keavon Chambers <keavon@keavon.com>

editor/src/messages/frontend/frontend_message.rs

@@ -128,9 +128,6 @@ pub enum FrontendMessage {
 		layout_target: LayoutTarget,
 		diff: Vec<WidgetDiff>,
 	},
-	UpdateDocumentArtboards {
-		svg: String,
-	},
 	UpdateDocumentArtwork {
 		svg: String,
 	},
@@ -155,12 +152,6 @@ pub enum FrontendMessage {
 		layout_target: LayoutTarget,
 		diff: Vec<WidgetDiff>,
 	},
-	UpdateDocumentNodeRender {
-		svg: String,
-	},
-	UpdateDocumentOverlays {
-		svg: String,
-	},
 	UpdateDocumentRulers {
 		origin: (f64, f64),
 		spacing: f64,