Fix linter error and vulnerabilities

• ESLint config file has an error
• Errors are present when npm i
• Remove useless packages
  • reflect-metadata
  • mkdirp
  • commitizen
  • cz-conventional-changelog
  • git-cz
  • pkg
  • pkg-fetch
  • standard-version
  • tsconfig-paths
  • ts-jest
  • ts-loader