move code to utils/file

app/utils/file.tsx

@@ -0,0 +1,31 @@
+"use client";
+import { initDB } from "react-indexed-db-hook";
+import { StoreKey } from "@/app/constant";
+import { useIndexedDB } from "react-indexed-db-hook";
+
+export const FileDbConfig = {
+  name: "@chatgpt-next-web/file",
+  version: 1,
+  objectStoresMeta: [
+    {
+      store: StoreKey.File,
+      storeConfig: { keyPath: "id", autoIncrement: true },
+      storeSchema: [
+        { name: "data", keypath: "data", options: { unique: false } },
+        {
+          name: "created_at",
+          keypath: "created_at",
+          options: { unique: false },
+        },
+      ],
+    },
+  ],
+};
+
+export function FileDbInit() {
+  initDB(FileDbConfig);
+}
+
+export function useFileDB() {
+  return useIndexedDB(StoreKey.File);
+}