Follow up to #1566 (#1567)

* Lazy loads phone input

* Removes duplicate CSS

pages/team/[slug]/book.tsx

@@ -1,5 +1,4 @@
 import { GetServerSidePropsContext } from "next";
-import "react-phone-number-input/style.css";
 
 import { asStringOrThrow } from "@lib/asStringOrNull";
 import prisma from "@lib/prisma";