clean up more lib paths

Author: bollwyvl

jupyterlab-server-proxy/package.json

@@ -20,8 +20,8 @@
     "LICENSE",
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}"
   ],
-  "main": "./lib/index.js",
-  "types": "./lib/index.d.ts",
+  "main": "lib/index.js",
+  "types": "lib/index.d.ts",
   "repository": {
     "type": "git",
     "url": "https://github.com/jupyterhub/jupyter-server-proxy.git"