Remove composer.lock file and update post-update-cmd script

Deleted composer.lock, a file that locks the project's dependencies. Also, the script 'post-update-cmd' has been updated and renamed to 'post-create-project-cmd' in composer.json. Notably, the operation that copies .env.example file to .env has been removed from the script.

Author: nbejansen

composer.json

@@ -11,8 +11,7 @@
   ],
   "require": {},
   "scripts": {
-    "post-update-cmd": [
-      "@php -r \"file_exists('.env') || copy('.env.example', '.env');\"",
+    "post-create-project-cmd": [
       "docker compose run app wp core download"
     ]
   }