Fix the types for express.Router (#16)

Author: chrisrohr

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@kiwiproject/dynamic-properties-provider",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "Dynamic Properties Provider is a utility library to assist in the generation of field definitions based on model classes. This process is helpful if a UI needs to build dynamic forms based on models in a service but don't want to hardcode all the fields of the models in the UI. This is a port of the Java library with the same name.",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",

package.json

@@ -1,4 +1,4 @@
-import express from "express";
+import { Router } from "express";
 import { Property } from "./property";
 
 /**
@@ -21,8 +21,8 @@ async function getPropertyListForObject(obj: any): Promise<Array<Property>> {
  */
 function setupDynamicPropertiesEndpoints(
   objects: Record<string, any>,
-): express.Router {
-  const router = express.Router();
+): Router {
+  const router = Router();
 
   router.get("/kiwi/dynamic-properties", async (_req, res, next) => {
     const props: object = {};