Implement Prisma & Neon (#747)

* Integrate next-auth with prisma ORM
* Integrate neon db with prisma ORM
* Update .nvmrc version
* Add vercel build script for prisma client generation and schema migration

Author: jonulak

.gitignore

@@ -53,3 +53,5 @@ public/workbox-*.js
 /playwright/.cache/
 
 
+
+/src/generated/prisma

.nvmrc

@@ -1 +1 @@
-18.18.0
+v20

next-env.d.ts

@@ -1,5 +1,6 @@
 /// <reference types="next" />
 /// <reference types="next/image-types/global" />
+/// <reference types="next/navigation-types/compat/navigation" />
 
 // NOTE: This file should not be edited
-// see https://nextjs.org/docs/pages/api-reference/config/typescript for more information.
+// see https://nextjs.org/docs/app/api-reference/config/typescript for more information.