fix: Prisma generation (#3820)

## Description

`cp` is a hell command
it works differently depending on does destination folder exists

## Steps for reproduction

1. click button
2. expect xyz

## Code Review

- [ ] hi @kof, I need you to do
  - conceptual review (architecture, feature-correctness)
  - detailed review (read every line)
  - test it on preview

## Before requesting a review

- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")

## Before merging

- [ ] tested locally and on preview environment (preview dev login:
5de6)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file

packages/prisma-client/package.json

@@ -8,7 +8,7 @@
   "scripts": {
     "typecheck": "tsc",
     "dev": "pnpm build",
-    "build": "prisma format && pnpm generate && esbuild src/prisma.ts --outdir=lib --format=cjs && cp src/cjs/package.json lib && cp -r src/__generated__ lib/__generated__ && pnpm dts",
+    "build": "prisma format && pnpm generate && esbuild src/prisma.ts --outdir=lib --format=cjs && cp src/cjs/package.json lib && rm -rf lib/__generated__ && cp -r src/__generated__ lib/__generated__ && pnpm dts",
     "generate": "PRISMA_BINARY_TARGET=${PRISMA_BINARY_TARGET:-'[\"native\"]'} prisma generate",
     "build:prod": "PRISMA_BINARY_TARGET='[\"rhel-openssl-3.0.x\"]' pnpm build",
     "dts": "tsc --declarationDir lib",