refactor(minimap): use minimap package in examples

examples/nextjs/pages/Overview/index.tsx

@@ -6,7 +6,6 @@ import React, {
 
 import ReactFlow, {
   addEdge,
-  MiniMap,
   Controls,
   Background,
   Node,
@@ -20,6 +19,8 @@ import ReactFlow, {
   OnSelectionChangeParams,
 } from '@react-flow/core';
 
+import MiniMap from '@react-flow/minimap';
+
 const onNodeDragStart = (_: ReactMouseEvent, node: Node, nodes: Node[]) =>
   console.log('drag start', node, nodes);
 const onNodeDrag = (_: ReactMouseEvent, node: Node, nodes: Node[]) =>