Remove unused import + type in index.tsx and [network].tsx files

packages/nextjs/pages/[contractAddress]/[network].tsx

@@ -2,7 +2,7 @@ import { useEffect, useState } from "react";
 import Link from "next/link";
 import { useRouter } from "next/router";
 import { ParsedUrlQuery } from "querystring";
-import { Abi, extractChain, isAddress } from "viem";
+import { Abi, isAddress } from "viem";
 import * as chains from "viem/chains";
 import { usePublicClient } from "wagmi";
 import { ExclamationTriangleIcon } from "@heroicons/react/24/outline";
@@ -23,8 +23,6 @@ type ContractData = {
   address: string;
 };
 
-type AllowedNetwork = (typeof scaffoldConfig.targetNetworks)[number]["id"];
-
 const ContractDetailPage = () => {
   const router = useRouter();
   const { contractAddress, network } = router.query as ParsedQueryContractDetailsPage;

packages/nextjs/pages/index.tsx

@@ -3,7 +3,7 @@ import Image from "next/image";
 import Link from "next/link";
 import { useRouter } from "next/router";
 import type { NextPage } from "next";
-import { Address, extractChain, isAddress } from "viem";
+import { Address, isAddress } from "viem";
 import { usePublicClient } from "wagmi";
 import { MetaHeader } from "~~/components/MetaHeader";
 import { MiniFooter } from "~~/components/MiniFooter";
@@ -19,8 +19,6 @@ enum TabName {
   addressAbi,
 }
 
-type AllowedNetwork = (typeof scaffoldConfig.targetNetworks)[number]["id"];
-
 const tabValues = Object.values(TabName) as TabName[];
 
 const networks = getTargetNetworks();