upgrade react-bootstrap version in playground to match bootstrap 4

Author: epicfaace

packages/playground/package.json

@@ -58,7 +58,7 @@
  "lodash": "^4.17.15",
  "prop-types": "^15.7.2",
  "react-app-polyfill": "^1.0.4",
- "react-bootstrap": "^0.33.1",
+ "react-bootstrap": "^1.3.0",
  "react-frame-component": "^4.1.1",
  "react-is": "^16.9.0",
  "shortid": "^2.2.14"