Improve UI Smoothness and Animations

* **What:** Enhance the user interface by adding smooth transitions and animations.

* **Why:** A smoother UI feels more modern and professional. Animations can provide valuable feedback to the user and make the application more enjoyable to use.

* **How:**
1. The project uses `framer-motion`, which is already a dependency. You can use it to add animations to components.
2. Identify areas where animations could improve the user experience. For example, when opening a modal, switching between chat rooms, or when new messages appear.
3. You can start with simple fade-in or slide-in animations for components. The `ChatModal.js` or the `Message.js` components would be good places to start.
4. Ensure that the animations are not jarring and do not negatively impact performance.

Inizia esaminando ChatModal.js e Message.js, quindi individua altre aree dell’interfaccia in cui le transizioni potrebbero migliorare il feedback. Usa la dipendenza framer-motion esistente per semplici animazioni fade-in o slide-in. Il lavoro è completato quando le interazioni selezionate risultano fluide e non brusche, senza influire negativamente sulle prestazioni.

Scritto dal modello di indicizzazione a partire dal testo della issue.