add pgcrypto to postgres via extension preview

db/postgresql/schema.prisma

@@ -1,11 +1,13 @@
 generator client {
   provider = "prisma-client-js"
+  previewFeatures = ["postgresqlExtensions"]
 }
 
 datasource db {
   provider = "postgresql"
   url      = env("DATABASE_URL")
   relationMode = "prisma"
+  extensions = [pgcrypto]
 }
 
 model User {