Bump send and expo in /example/react-native-fab-demo (#79)

Bumps [send](https://github.com/pillarjs/send) to 0.19.1 and updates ancestor dependency [expo](https://github.com/expo/expo/tree/HEAD/packages/expo). These dependencies need to be updated together.


Updates `send` from 0.18.0 to 0.19.1
- [Release notes](https://github.com/pillarjs/send/releases)
- [Changelog](https://github.com/pillarjs/send/blob/master/HISTORY.md)
- [Commits](https://github.com/pillarjs/send/commits)

Updates `expo` from 49.0.3 to 52.0.7
- [Changelog](https://github.com/expo/expo/blob/main/packages/expo/CHANGELOG.md)
- [Commits](https://github.com/expo/expo/commits/HEAD/packages/expo)

---
updated-dependencies:
- dependency-name: send
  dependency-type: indirect
- dependency-name: expo
  dependency-type: direct:production
...

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