fixing invalid JSON formatting

[fatihmerickoc]

have changed the way we treat json values in _parseValue method, from now on json values will not be converted into map and then later into string which then results of json values losing the quotes. this is crucial because it makes you work with correct JSON values instead of invalid ones.

from this:

{ 
people: [
    {
      name: Alice,
      age: 30,
      hobbies: [reading, photography]
    },
    {
      name: Charlie,
      age: 35,
      hobbies: [painting, gardening]
    }
  ]
}

to this:

  {
  "people": [
    {
      "name": "Alice",
      "age": 30,
      "hobbies": ["reading", "photography"]
    },
    {
      "name": "Charlie",
      "age": 35,
      "hobbies": ["painting", "gardening"]
    }
  ]
}