Upgrading Rollup for `reactotron-react-native`

[morganick]

• Upgrading to latest 2.x release
• Upgrading rollup to 4.17.2 and plugins
• Fixing formatting issues

Please verify the following:

• [x] yarn build-and-test:local passes
• [ ] I have added tests for any new features, if relevant
• [ ] README.md (or relevant documentation) has been updated with your changes

Describe your PR

[jamonholmgren]

@morganick Is this worth bringing up to date and getting merged?

[joshuayoes]

We've moved off rollup so we don't need this anymore.