Adds pathname to effect dependencies

Ensures the effect hook updates correctly when the pathname changes,
improving synchronization with route-based state changes.

components/chat-panel.tsx

@@ -953,6 +953,7 @@ export default function ChatPanel({
         dict.dialogs.clearSuccess,
         buildSessionData,
         setDiagramHistory,
+        pathname,
     ])
 
     const handleInputChange = (