Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/44874

While reviewing https://github.com/facebook/react/pull/29830, I noticed this file was committed with tab indentation in React Native. I have also used the `.gitignore` entry to clarify how `react-native.code-workspace` interacts with an optional user `.vscode/` config directory.

Note: The `json-stringify` parser can be used with Prettier 3+ only, so we use `json` instead.

Changelog: [Internal]

Reviewed By: vzaidman

Differential Revision: D58413581

fbshipit-source-id: 58c14db6648fed10736062b1f055475154aa74a4