Fix escaping in the URL conversion (#36898)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/36898

This changes are a followup from D42281798 and the task T141309497.

In the previous diff, we were able to handle most cases thanks to `NSURLComponents`. `NSURLComponents` provides us with more flexibility so that we could handle the missing cases.

## Changelog:
[iOS][Fixed] - Handle doulbe `#` and partially escaped urls

Reviewed By: sammy-SC

Differential Revision: D44958172

fbshipit-source-id: 03628d86966c149d0785ad90fdbccbcb5e70106e