Accept missing quotes in prop names and trailing commas

[black-hawk85]

This change will accept JSON variables copied from VSCode Watch

e.g.

{
    success: {
        message: "Welcome to JSON Viewer Pro",
        status_code: 200,
    }
}

[black-hawk85]

Fixed colons in keynames or values

e.g.

{
    success: {
        message: "Welcome to JSON Viewer Pro",
        "key:name containing colon": "17:30",
        status_code: 200,
    }
}

[black-hawk85]

This project still alive?

[rbrahul]

This project still alive? Hi, Sorry for delayed reply. I am kind of busy with my personal and professional life. I need some time to test the feature manually before I can consider for merging. Thanks for your contribution. Best regards, Rahul