fix: preserve i18n.json formatting to avoid unnecessary PRs

[Aditya-A-G]

fixes: #197

This PR updates the CLI's JSON serializer to detect and respect existing indentation in i18n.json, avoiding unnecessary formatting changes, addressing the core need outlined in #197. Other formatting elements like quote style aren’t needed for this solution.

[Aditya-A-G]

Hey @maxprilutskiy, could you review this PR when you have a moment? Thanks!

[maxprilutskiy]

hey @Aditya-A-G – thanks for the PR!

Actually, given some recent changes we made, you can now implement #197 in a much more elegant / easier way.

1. We already have prettier among dependecies of this project
2. Prettier has a JS API
3. Upon (re-)saving the i18n.json configuration, let's use the prettier config the user might already have, and if they don't then let's use the default prettier config. (Our only requirement to the the default fallback is 2 spaces indentation).

Once you finish the implementation, don't forget to run pnpm new from the root of the repo, and then add a brief summary of the changes you're making. Your message will then trigger a new npm package release, once the PR is merged, and will become a part of the changelog.

Let me know if this makes sense!

[Aditya-A-G]

Yes, that makes sense! I will implement the change using Prettier as you suggested.

[maxprilutskiy]

@Aditya-A-G let me know how this goes and if you need any help!

cc @partik03 if you have any opinion here, lmk

[partik03]

@maxprilutskiy I tried searching for this using prettier but prettier.resolveConfig function is an asynchronous function which needs to be awaited to resolve the configuration of the i18n file due to which we will have to handle promises at various instances in the code

edit: check the prettier doc here

[Aditya-A-G]

will create a fresh pr