Using `useSearch` with SSR throws a hydration warning

[molefrog]

How to reproduce:

1. Create a web-server and render wouter app with <Router ssrPath={requestUrl.pathname} ssrSearch={requestUrl.search}>
2. On the client-side render your app wrapped in just <Router />
3. You will see the hydration warning.

Expected: when wouter runs in the browser, by default it should fill in ssrPath and ssrSearch with current pathname and search string extracted from location