use URLSearchParams instead of the querystring package (deprecated)

## Expected Behavior
the native-url is a popular package and used by next and many other popular packages, so it's important to keep dependencies up-to-date :)
Use [URLSearchParams ](https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams/URLSearchParams) instead

## Actual Behavior
The native-url npm package is using the querystring package which is deprecated.
You can see more details about the deprecating of the [querystring](https://www.npmjs.com/package/querystring) package here.

## Steps to Reproduce the Problem
You can do npm install and you'll see the npm Deprecation warning

## Specifications

- Version: 0.3.4
- Platform: