[router] fix initial url on web when using baseUrl (#27287)

# Why

ENG-11108

When using a baseUrl on web after the initial load a `history.replace`
event is fired which strips the baseUrl. This is caused by React
Navigation examining the current URL (which has the baseURL) and the
`url` attribute on the current focused route (which does not include the
baseURL). As they are different, it assumes the URL is wrong and changes
it via `history.replace`.

# How

I tried to fix this within the existing code, but eventually concluded
that we simply need to fork `useLInking` for web as well. This fork
simply removes the logic to use the URL on the state, and fall back to
`getPathFromState` (which correctly handles baseUrl)


# Test Plan

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# Checklist

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- [ ] Documentation is up to date to reflect these changes (eg:
https://docs.expo.dev and README.md).
- [ ] Conforms with the [Documentation Writing Style
Guide](https://github.com/expo/expo/blob/main/guides/Expo%20Documentation%20Writing%20Style%20Guide.md)
- [ ] This diff will work correctly for `npx expo prebuild` & EAS Build
(eg: updated a module plugin).

---------

Co-authored-by: Expo Bot <34669131+expo-bot@users.noreply.github.com>

packages/expo-router/CHANGELOG.md

@@ -23,6 +23,7 @@
 - Fix `push` navigation not pushing the same route multiple times ([#27307](https://github.com/expo/expo/pull/27307) by [@marklawlor](https://github.com/marklawlor))
 - Fix router.navigate will only push when path parameters change ([#27285](https://github.com/expo/expo/pull/27285) by [@marklawlor](https://github.com/marklawlor))
 - Fix incorrect route generation of array shared groups with brackets ([#27459](https://github.com/expo/expo/pull/27459) by [@marklawlor](https://github.com/marklawlor))
+- Fix incorrect initial URL on web when using baseUrl ([#27287](https://github.com/expo/expo/pull/27287) by [@marklawlor](https://github.com/marklawlor))
 
 ### 💡 Others