Design a modern SaaS dashboard UI for a Telegram account manager tool built for sales teams. The interface shows multiple Telegram accounts on the left sidebar as tabs (like Discord), each with phone numbers and online status icons. The main chat window displays a Telegram-style conversation with a customer, including message bubbles, emojis, and a text input box. Add a top bar with the logged-in staff user profile, and a clean, fun, colorful design with soft shadows and rounded corners. Use a friendly, playful style but keep it professional — like a mix between Slack and Telegram Web. Show notifications, message status (sent/read), and a minimal admin icon in the corner for bosses to monitor activity. Dark mode UI with teal and blue accents.