Use canvas as target for raster rendering (#1256)

* Implement ApplicationIo

* Simplify output duplication logic

* Fix let node initialization for ExtractImageFrame

* Async macros

* Use manual node registry impl

* Fix canvas insertion into the dom

document-legacy/src/operation.rs

@@ -76,6 +76,10 @@ pub enum Operation {
 		path: Vec<LayerId>,
 		vector_data: graphene_core::vector::VectorData,
 	},
+	SetSurface {
+		path: Vec<LayerId>,
+		surface_id: graphene_core::SurfaceId,
+	},
 	TransformLayerInScope {
 		path: Vec<LayerId>,
 		transform: [f64; 6],