Update Prisma to v5.1.1 and define Node.js 18 LTS as the minimum

[paazmaya]

Once every often I have come across the issue where the Prisma client dependency has not been found, even after it was specifically generated.

Looking at

• Could not resolve @prisma/client despite the installation that we just tried. prisma/prisma#7234
• generate output relative to node_modules/@prisma/client prisma/prisma#17162
• https://www.prisma.io/docs/concepts/components/prisma-client/working-with-prismaclient/generating-prisma-client
  ...got the idea to define where the generated client should go.

Before npx prisma generate:

Environment variables loaded from .env
Environment variables loaded from prisma/.env
Prisma schema loaded from prisma/schema.prisma

✔ Generated Prisma Client (5.1.1 | library) to ./prisma/node_modules/@prisma/client in 218ms
You can now start using Prisma Client in your code. Reference: https://pris.ly/d/client

import { PrismaClient } from '@prisma/client'
const prisma = new PrismaClient()

After npx prisma generate:

Environment variables loaded from .env
Environment variables loaded from prisma/.env
Prisma schema loaded from prisma/schema.prisma

✔ Generated Prisma Client (5.1.1 | library) to ./node_modules/.prisma/client in 223ms
You can now start using Prisma Client in your code. Reference: https://pris.ly/d/client

import { PrismaClient } from './node_modules/.prisma/client'
const prisma = new PrismaClient()

But then reverted

Since there were issues with Docker builds and since "it works most of the time", I gave it a rest.

[pashidlos]

LGTM