Fix prisma schema

prisma/schema.prisma

@@ -30,15 +30,22 @@ model Pizza {
   description  String?
   restaurant   Restaurant     @relation(fields: [restaurantId], references: [id])
   restaurantId Int
+  orders       PizzatoOrder[]
 }
 
 model Order {
   id     Int            @id @default(autoincrement())
   user   User           @relation(fields: [userId], references: [id])
   userId Int
+  pizzas PizzatoOrder[]
+}
+
+model PizzatoOrder {
+  id      Int   @id @default(autoincrement())
+  order   Order @relation(fields: [orderId], references: [id])
+  orderId Int
   pizza   Pizza @relation(fields: [pizzaId], references: [id])
   pizzaId Int
-    amount Int
 }
 
 enum Role {