Great work!
Currently this plugin transforms every object literal to a JSON.parse call, but it is not the ideal behavior.
For example, what if an object literal contains a variable? Obviously this one cannot be converted to a JSON.parse call.

// before
const a = 123;
const obj = {
    hi: "hi",
    foo: a,
}

console.log(obj.foo); // => "foo"

// after (current behavior)
const a = 123;
const obj = JSON.parse("{\"hi\":\"hi\"}");
console.log(obj.foo); // => undefined

Also, currently this plugin throws for an object literal with methods.

const obj = {
    method() {
        console.log("hi")
    }
}

obj.method()

These problems can be resolved by checking the contents of object literals and leaving it not converted if it is not convertible.

Once this is implemented, I'd be very interested in contributing to this plugin.
Thank you!