refactor(packages): change package structure

packages/react/src/hooks/useVisibleNodes.ts

@@ -0,0 +1,21 @@
+import { useCallback } from 'react';
+import { getNodesInside } from '@xyflow/system';
+
+import { useStore } from '../hooks/useStore';
+import type { Node, ReactFlowState } from '../types';
+
+function useVisibleNodes(onlyRenderVisible: boolean) {
+  const nodes = useStore(
+    useCallback(
+      (s: ReactFlowState) =>
+        onlyRenderVisible
+          ? getNodesInside<Node>(s.getNodes(), { x: 0, y: 0, width: s.width, height: s.height }, s.transform, true)
+          : s.getNodes(),
+      [onlyRenderVisible]
+    )
+  );
+
+  return nodes;
+}
+
+export default useVisibleNodes;