feat: enhance asset browser panel with improved asset selection and loading states

- Added state management for asset selection to prevent multiple simultaneous selections.
- Implemented request sequence tracking to ensure accurate loading state handling during asset searches.
- Enhanced error handling and user feedback for asset loading failures.
- Updated UI elements to improve accessibility and user experience during asset browsing.

components/canvas/nodes/note-node.tsx

@@ -53,7 +53,7 @@ export default function NoteNode({ id, data, selected }: NodeProps<NoteNode>) {
   );
 
   return (
-    <BaseNodeWrapper nodeType="note" selected={selected} className="w-52 p-3">
+    <BaseNodeWrapper nodeType="note" selected={selected} className="p-3">
       <Handle
         type="target"
         position={Position.Left}