Concise shorthand feature for nested objects

[xiaoqhou]

I am wondering if Pkl can easily implement a concise shorthand feature for nested objects, similar to CUE and KCL.
Instead of writing multiple lines of boilerplate curly braces for a single value, users could chain properties together on a single line using colons or dots. This would drastically reduce configuration boilerplate and make nested object overrides much cleaner to read.

Below is an example CUE code(https://cuelang.org/docs/tour/basics/folding-structs/):

fruit: apple: weight: 5
fruit: grape: weight: 2

Would translate to JSON:

{
  "fruit": {
    "apple": {
      "weight": 5
    },
    "grape": {
      "weight": 2
    }
  }
}

[HT154]

Hi there! This is something we've been tracking for a while now in #423

The major prerequisite for this feature (parse-time name resolution) landed recently, so progress on this is now unblocked!

[xiaoqhou]

Excellent! I am looking forward to this feature.