fix(oauth): correct parameter names (code_autorisation, not code)

Qobuz redirects to play.qobuz.com/discover?code_autorisation=XXX
not ?code=XXX. Both the navigation intercept and the /oauth/callback
API call were using the wrong parameter name, so the code was never
captured and the exchange request was malformed.

crates/qbz-qobuz/src/client.rs

@@ -210,7 +210,7 @@ impl QobuzClient {
             .http
             .get(&callback_url)
             .headers(headers)
-            .query(&[("code", code), ("private_key", &private_key)])
+            .query(&[("code_autorisation", code), ("private_key", &private_key)])
             .send()
             .await?;