Adds missing required main file for EE (#2146)

* Adds missing required main file

* Lint fixes

apps/web/pages/500.tsx

@@ -11,10 +11,10 @@ export default function Error500() {
       </Head>
       <div className="m-auto text-center">
         <h1 className="font-cal text-[250px] text-gray-900">
-          5<img src="/error.svg" className="inline -mt-10 w-60" />0
+          5<img src="/error.svg" className="-mt-10 inline w-60" />0
         </h1>
         <h2 className="mb-2 -mt-16 text-3xl text-gray-600">It&apos;s not you, it&apos;s us.</h2>
-        <p className="max-w-2xl mb-4 text-gray-500">
+        <p className="mb-4 max-w-2xl text-gray-500">
           Something went wrong on our end. Get in touch with our support team, and we’ll get it fixed right
           away for you.
         </p>

packages/ee/index.ts

@@ -0,0 +1 @@
+export * from "lib/core/checkPremiumUsername";

packages/ee/package.json

@@ -4,6 +4,7 @@
   "version": "0.0.0",
   "private": true,
   "license": "AGPLv3",
+  "main": "./index.ts",
   "scripts": {
     "clean": "rm -rf .turbo && rm -rf node_modules"
   },