message: Add "yarn dev" to template
diff: "node": "12 || 14"
  },
  "scripts": {
  + "dev": "concurrently \"yarn start\" \"yarn start-backend\"",
  "start": "yarn workspace app start",
  "start-backend": "yarn workspace backend start",
  "build": "lerna run build",
  },
  "devDependencies": {
  "@backstage/cli": "^{{version '@backstage/cli'}}",
  - "@spotify/prettier-config": "^7.0.0",
  + "concurrently": "^6.0.0",
  "lerna": "^4.0.0",
  - "prettier": "^1.19.1"
  + "prettier": "^1.19.1",
  + "@spotify/prettier-config": "^7.0.0"
  },
  "prettier": "@spotify/prettier-config",
  "lint-staged": {
  