implemented new fitView logic

packages/react/src/hooks/useEdges.ts

@@ -6,10 +6,22 @@ import type { Edge, ReactFlowState } from '../types';
 const edgesSelector = (state: ReactFlowState) => state.edges;
 
 /**
- * Hook for getting the current edges from the store.
+ * This hook returns an array of the current edges. Components that use this hook
+ * will re-render **whenever any edge changes**.
  *
  * @public
- * @returns An array of edges
+ * @returns An array of all edges currently in the flow.
+ *
+ * @example
+ * ```tsx
+ *import { useEdges } from '@xyflow/react';
+ *
+ *export default function () {
+ *  const edges = useEdges();
+ *
+ *  return <div>There are currently {edges.length} edges!</div>;
+ *}
+ *```
  */
 export function useEdges<EdgeType extends Edge = Edge>(): EdgeType[] {
   const edges = useStore(edgesSelector, shallow) as EdgeType[];