message: move react-popper from devDependencies to dependencies
diff: "react-docgen": "^5.4.0-alpha.0",
  "react-dom": "^16.8.6",
  "react-frame-component": "^3.0.0",
  - "react-popper": "^2.2.5",
  "react-styleguidist": "^11.1.5",
  "shx": "^0.3.2",
  "size-limit": "^4.9.1",
  "test:static"
  ],
  "dependencies": {
  - "@popperjs/core": "^2.9.2"
  + "@popperjs/core": "^2.9.2",
  + "react-popper": "^2.2.5"
  }
  }
  