chore: Centralise ESLint rules (#2162)

* chore: centrilize eslint rules

packages/create-medusa-app/package.json

@@ -30,7 +30,6 @@
     "common-tags": "^1.8.0",
     "configstore": "^6.0.0",
     "enquirer": "^2.3.6",
-    "eslint": "^7.32.0",
     "execa": "^5.1.1",
     "fs-exists-cached": "^1.0.0",
     "fs-extra": "^10.0.0",
@@ -38,7 +37,6 @@
     "is-valid-path": "^0.1.1",
     "microbundle": "^0.13.3",
     "node-fetch": "^2.6.1",
-    "prettier": "^2.3.2",
     "prompts": "^2.4.1",
     "string-length": "^4.0.2",
     "terminal-link": "^2.1.1",