Feat/add nextjs base (#2)

* feat: add nextJS packages and base files

* feat: add new .env file

* feat: add not-foound component

Author: dfiedlerx

.env

@@ -0,0 +1,7 @@
+
+
+export default function NotFound() {
+  return (
+    <div>Not Found!</div>
+  )
+}