fix: json body prettify not working with comments

[asonkeri]

Added Microsoft's node-jsonc-parser library that is able to format json with comments. Seems to handle bigints properly too.

It may be good to consider replacing existing decomment library with jsonc-parser if its only use case is to decomment json.

Fixes usebruno#1830

Before. Failing to prettify JSON body with comments:

After. JSON body properly formatted:

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