fix bug

frontend/src/pages/HomePage.tsx

@@ -1,7 +1,7 @@
 import { useState } from 'react'
 import SearchBar from '../components/SearchBar'
 import CollectionList from '../components/CollectionList'
-import { createCollection, addStock } from '../api'
+import { createCollection } from '../api'
 import type { StockItem } from '../types'
 
 export default function HomePage() {