Replace deprecated koa middleware

lib/ui.ts

@@ -1,10 +1,10 @@
 import { constants } from "node:zlib";
 import Koa from "koa";
-import Router from "koa-router";
+import Router from "@koa/router";
 import * as jwt from "jsonwebtoken";
 import koaSend from "koa-send";
 import koaCompress from "koa-compress";
-import koaBodyParser from "koa-bodyparser";
+import koaBodyParser from "@koa/bodyparser";
 import koaJwt from "koa-jwt";
 import * as config from "./config.ts";
 import api from "./ui/api.ts";
@@ -18,12 +18,6 @@ import { version as VERSION } from "../package.json";
 import memoize from "./common/memoize.ts";
 import { APP_JS, APP_CSS, FAVICON_PNG } from "../build/assets.ts";
 
-declare module "koa" {
-  interface Request {
-    body: any;
-  }
-}
-
 const koa = new Koa();
 const router = new Router();
 

lib/ui/api.ts

@@ -1,5 +1,5 @@
 import { Readable } from "node:stream";
-import Router from "koa-router";
+import Router from "@koa/router";
 import { ObjectId } from "mongodb";
 import * as db from "./db.ts";
 import * as apiFunctions from "../api-functions.ts";