feat(create-medusa-app): add support for pnpm and specifying package manager (#14443)

* feat(create-medusa-app): add support for pnpm and specifying package manager

* fixes

* add medusa command method

* add tests for package manager

* fix duplicate messages

* throw if chosen package manager is not available

* better package manager and version detector

* add debug message

* fix version detection

* fix for yarn v3

* fix migration command

* yarn v3 fix

* remove .yarn directory for non-yarn package managers

* run npm ci to validate npm installation

* fixes

* fixes

* remove corepack line

* remove if condition

packages/cli/create-medusa-app/package.json

@@ -9,8 +9,9 @@
   "scripts": {
     "dev": "node --loader ts-node/esm src/index.ts",
     "start": "node dist/index.js",
-    "build": "tsc",
-    "watch": "yarn run -T tsc --watch"
+    "build": "yarn run -T tsc",
+    "watch": "yarn run -T tsc --watch",
+    "test": "../../../node_modules/.bin/jest --passWithNoTests src"
   },
   "dependencies": {
     "@medusajs/deps": "2.12.5",