message: install styled-components types as a prod dependency
diff: "@styled-system/props": "5.1.4",
  "@styled-system/theme-get": "5.1.2",
  "@types/styled-system": "5.1.2",
  + "@types/styled-components": "^4.4.0",
  "classnames": "^2.2.5",
  "details-element-polyfill": "2.4.0",
  "polished": "3.5.2",
  },
  "devDependencies": {
  "@testing-library/react": "9.4.0",
  - "@types/styled-components": "^4.4.0",
  "@babel/cli": "7.8.4",
  "@babel/core": "7.9.0",
  "@babel/plugin-proposal-nullish-coalescing-operator": "7.12.1",
  