* refactor(http)!: always enforce the scope on redirects
Removes the `scopeRedirects` option (and the `Config` struct with it) that
was added as an opt-in in 2.7.0. Every hop of a redirect chain is now
checked against the URL scope, so a server on an allowed origin can no
longer redirect the request to a URL the scope denies.
`tauri_plugin_http::init()` returns `TauriPlugin<R>` again.
* chore(http): compile without warnings when the cookies feature is disabled
