breaking: Replace launchEditor implementation

[huntie]

Summary:

Replace the custom implementation of launchEditor in the cli-tools package with a call to launch-editor.

• This PR is marked as breaking due to anticipated misalignments for esoteric editor setups.
  • Looking through the history of our changes to this file (last touched 2023), we are unlikely to lose any important functionality.

Why launch-editor?

• Originally forked from react-dev-utils, which is the same base implementation that was originally copied into this repo.
• Well-maintained packages with 21 commits in 2024.
  • e.g. has support for Cursor, where we do not.
• 7.7M weekly downloads and depended on by Vue.js' CLI utils (@vue/cli-shared-utils).

Test Plan:

• Build this repo via yarn build.
• Link @react-native-community/cli-tools and @react-native-community/cli-server-api into a local checkout of react-native via yarn link.
• Open RNTester, modified to throw an error on launch.

Screen.Recording.2025-01-29.at.13.01.33.mov

✅ RedBox is rendered with stack trace
✅ Tapping item in component stack opens in my active editor (VS Code)
✅ Assert new code is called with temp console log

Checklist

• Documentation is up to date to reflect these changes.
• Follows commit message convention described in CONTRIBUTING.md

[szymonrybczak]

nit: why do we keep this argument instead of just removing it?

[huntie]

For now, to not break the API of the cli-tools package itself. (Although, doing this isn't far off 👀)

[szymonrybczak]

Awesome! Thank you for working on this 👏