Reduce lambda size by stripping dev dependencies

package.json

{
  "scripts": {
      "lint": "node node_modules/eslint/bin/eslint.js src --config ./.eslintrc.json",
      "lint:fix": "npm run lint -- --fix",
      "pre-package": "npm run lint && mv node_modules full_node_modules && npm prune --production",
      "package": "npm run pre-package && npm run pack-publish && npm run post-package",
      "post-package": "rm -rf node_modules && mv full_node_modules node_modules",
      "pack-publish": "rm code.zip && zip -r code.zip src package.json node_modules",
      "test": "npm run test"
    }
  }