switch to prisma

context/book.tsx

@@ -1,20 +1,18 @@
 import React, { useEffect, useReducer } from 'react'
+import { Prisma } from '@prisma/client'
 import { useRouter } from 'next/router'
 import { clearBookingData, loadBookingData } from '../helpers/storage'
 import { log } from '../helpers/log'
 
 import { createBooking } from '../helpers/booking'
-import { Booking } from '../db/booking'
-
-export type BookFormData = Omit<Booking, 'uuid' | 'calendarEventId'>
 
 type BookingProviderState = {
   postData?: boolean
   postDataError?: string
   postDataSuccess?: boolean
-  formData: BookFormData
+  formData: Prisma.BookingCreateInput,
   formDataChanged: string[]
-  booking?: Booking
+  booking?: Prisma.BookingCreateInput,
   dataStored: boolean
   dataStoredLoaded: boolean
 }