Root Container - Copy this React, Mui Component to your project

Create a Chat UI inspired by Telegram with a dark theme and a sidebar on the left displaying a list of contacts, including avatars and names for easy navigation. The main area should showcase user conversations with a clean, modern layout that prioritizes readability. The dark theme should enhance the user experience, with clear contrasts for text and icons. The design should be intuitive, visually appealing, and user friendly, enabling effortless navigation through contacts and seamless conversations. Ensure the UI is responsive across all devices and fully functional.