address breaking changes

pages/admin/bookings/[uuid]/index.tsx

@@ -38,7 +38,7 @@ function ShowBookingAdmin({ booking: bookingProp }: { booking: Booking }) {
   return (
     <Layout>
       <h2 className="text-3xl">Buchung {booking.uuid}</h2>
-      <Calendar start={booking.startDate} end={booking.endDate} />
+      <Calendar start={booking.start} end={booking.end} />
       <div>
         <strong>Buchungszeitraum:</strong> {daysFormatFrontend(booking.days)}
       </div>

pages/api/auth/[...nextauth].ts

@@ -3,14 +3,14 @@ import NextAuth from 'next-auth'
 import EmailProvider from 'next-auth/providers/email'
 
 import { MongoDBAdapter } from '@next-auth/mongodb-adapter'
-import { MONGO_URI, MONGODB_OPTIONS } from '../../../db'
+import { MONGO_URI } from '../../../db'
 import { MongoClient } from 'mongodb'
 
 let client: MongoClient
 
 async function getMongoClient() {
   if (!client) {
-    client = new MongoClient(MONGO_URI, MONGODB_OPTIONS)
+    client = new MongoClient(MONGO_URI)
     await client.connect()
   }
 

pages/api/bookings/[uuid]/bill.ts

@@ -1,7 +1,11 @@
+import { NextApiRequest, NextApiResponse } from 'next'
 import { Bill } from '../../../../db/bill'
 import { createBill, patchBill } from '../../../../db/index'
 
-export default async function billHandler(req, res): Promise<void> {
+export default async function billHandler(
+  req: NextApiRequest,
+  res: NextApiResponse
+  ): Promise<void> {
   const {
     method,
     query: { uuid: uuids },