Chat and Video Conferencing

[vaishnavi-3969]

Built-in communication tools for users to chat and hold video conferences.

Chat Integration: Integrate a real-time chat feature (e.g., using WebSockets).
Chat UI Design: Design the chat interface.
Video Conferencing Integration: Integrate a video conferencing tool (e.g., WebRTC, Jitsi).
Video Call UI: Create the UI for video calls.
Notification System: Implement notifications for new messages and calls.