Which @angular/* package(s) are relevant/related to the feature request?

• No response*

Description

Right now, i18n supports JSON source files (fantastic, loving it).
One thing that is giving us a lot of extra work is that nested JSON does not seem to be supported.
Example: right now we have to flatten the structure, let's say we have a feature:

{
    "locale": "en",
    "translations": {
        "feature.title": "Lorem ipsum title",
        "feature.content": "Lorem ipsum content",
        "feature.para1": "Lorem ipsum 1",
        "feature.para2": "Lorem ipsum 2",
        "feature.para3": "Lorem ipsum 3",
        "feature.para4": "Lorem ipsum 4",
        "feature.para5": "Lorem ipsum 5",
        "feature.para6": "Lorem ipsum 6"       
    }
}

Ideally this should be possible instead:

{
  "locale": "en",
  "translations": {
      "feature": {
        "title": "Lorem ipsum title",
        "content": "Lorem ipsum content",
        "para1": "Lorem ipsum 1",
        "para2": "Lorem ipsum 2",
        "para3": "Lorem ipsum 3",
        "para4": "Lorem ipsum 4",
        "para5": "Lorem ipsum 5",
        "para6": "Lorem ipsum 6"
      }  
  }
}

The latter version makes it much more readable, and requires less repeated boilerplate.
Thanks

Proposed solution

Support nested JSON language files

Alternatives considered

Write scripts that convert nested source files, to flat versions.