fix: add migrations folder to Docker image for wishlist tables

- Added COPY play-life-backend/migrations /migrations to Dockerfile
- Fixed 'relation wishlist_items does not exist' error on production
- Bump version to 3.9.2

play-life-web/package.json

@@ -1,6 +1,6 @@
 {
   "name": "play-life-web",
-  "version": "3.9.1",
+  "version": "3.9.2",
   "type": "module",
   "scripts": {
     "dev": "vite",