float and double are misleading

In the comment it is remarked that float and double are similar to c float and double. But the JavaScript Number type allows more numbers. It looks like these formats were added as `dummy` formats and do not enforce any real range.

[Float vs Double](https://hackr.io/blog/float-vs-double)

[what-is-a-json-number](https://github.com/bterlson/blog/blob/main/content/blog/what-is-a-json-number.md)