Migrate node graph UI interaction from frontend to backend (#1768)

* Click node using click targets based

* Display graph transform based on state stored in Rust, fix zoom and pan.

* Migrate node selection logic

* Move click targets and transform to NodeNetwork

* Keep click targets in sync with changes to node shape

* Click targets for import/export, add dragging

* Basic wire dragging

* complete wire dragging

* Add node selection box when dragging

* Fix zoom operations and dragging nodes

* Remove click targets from serialized data, fix EnterNestedNetwork

* WIP: Auto connect node when dragged on wire

* Finish auto connect node when dragged on wire

* Add context menus

* Improve layer width calculations and state

* Improve context menu state, various other improvements

* Close menu on escape

* Cleanup Graph.svelte

* Fix lock/hide tool tip shortcuts

* Clean up editor_api.rs, fix lock/hide layers

* Start transferring network and node metadata from NodeNetwork to the editor

* Transfer click targets to NodeGraphMessageHandler

* Fix infinite canvas

* Fix undo/redo, scrollbars, and fix warnings

* Unicode-3.0 license and code cleanup

* License fix

* formatting issue

* Enable DomRect

* Fix layer move crash

* Remove tests

* Ignore test

* formatting

* remove white dot

---------

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

node-graph/gcore/src/graphic_element/renderer.rs

@@ -14,6 +14,7 @@ use glam::{DAffine2, DVec2};
 
 /// Represents a clickable target for the layer
 #[derive(Clone, Debug)]
+#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 pub struct ClickTarget {
 	pub subpath: bezier_rs::Subpath<PointId>,
 	pub stroke_width: f64,
@@ -471,7 +472,7 @@ impl GraphicElementRendered for crate::ArtboardGroup {
 	}
 
 	fn contains_artboard(&self) -> bool {
-		true
+		self.artboards.len() > 0
 	}
 }
 impl GraphicElementRendered for ImageFrame<Color> {