Update API standards on PUT payload

[ASH-Maan]

By default, Ember will wrap the name of the endpoint around the object we are sending/updating to the backend. Object should look like this:

{
    "movie": {
        "title": "Goodfellers",
        "year": "1990",
        "radioheadOnSoundtrack": false
    }
}

instead of:

{
  "title": "Goodfellers",
  "year": "1990",
  "radioheadOnSoundtrack": false
}