Support changes coming in the @react-native-community/cli

[blakef]

There are 2 changes that are arriving in 0.75 that rn-diff-purge will need to be tweaked to support RFC-0759 React Native Frameworks.

NOTE: This is up for grabs if anyone wants to help / contribute. I've allocated time at the end of the month to do this if no one bites 🦦.

TODO:

• The template is being moved from react-native/template → @react-native-community/template. This is mostly transparent, but it does mean that installing X version of React Native today and then doing that tomorrow could have slightly different versions of the template. We've figured out a way to handle that. This is up for grabs if anyone is interested.
• npx react-native is now changing to npx @react-native-community/cli, and the former will stop working on 30 September 2024 or when 0.76 is released (which ever comes first). There's a diff for this.

I want to track the progress to supporting this here.