Added language inforation into session.

src/main.rs

@@ -73,7 +73,9 @@ where
         let requested = req_id.clone();
         let (tx, mut rx) = channel(1);
         spawn(async move {
-            tx.send(state.validate_session(requested)).await.unwrap();
+            tx.send(state.validate_session(requested, None))
+                .await
+                .unwrap();
         });
         let id = rx.recv().await.unwrap();
         if !req_id.is_some_and(|x| x == id.to_string()) {