fix zindexing for hud

Author: softmarshmallow

editor-packages/editor-canvas/canvas/canvas.tsx

@@ -71,7 +71,7 @@ export function Canvas({
   config = default_canvas_preferences,
   ...props
 }: {
-  onSelectNode?: (node: ReflectSceneNode) => void;
+  onSelectNode?: (node?: ReflectSceneNode) => void;
   onClearSelection?: () => void;
 } & CanvasCustomRenderers &
   CanvasState & {
@@ -261,6 +261,7 @@ function CanvasTransformRoot({
   return (
     <div
       style={{
+        zIndex: -1,
         position: "fixed",
         top: 0,
         left: 0,

editor/scaffolds/canvas/canvas.tsx

@@ -52,7 +52,7 @@ export function VisualContentArea({ fileid }: { fileid: string }) {
               selectedNodes={selectedNodes.filter(Boolean)}
               highlightedLayer={highlightedLayer}
               onSelectNode={(node) => {
-                dispatch({ type: "select-node", node: node.id });
+                dispatch({ type: "select-node", node: node?.id });
               }}
               onClearSelection={() => {
                 dispatch({ type: "select-node", node: null });