message: Downgrade rc-slider to fix alignment issues
diff: "qrcode": "1.2.0",
  "qrcode.react": "0.8.0",
  "query-string": "6.0.0",
  - "rc-slider": "8.6.1",
  + "rc-slider": "8.6.0",
  "react": "16.3.1",
  "react-copy-to-clipboard": "5.0.1",
  "react-dom": "16.3.1",
  