This commit overhauls the chat page UI for a cleaner, more modern aesthetic inspired by popular messaging apps.
Key changes include:
- Redesigned the chat header to display the user's name and role.
- Replaced the message input area with a WhatsApp-style layout.
- Added user avatars to received messages and a person icon to sent messages for clearer identification.
- Swapped custom SVG icons with Bootstrap Icons for consistency and easier maintenance.
- Removed the floating circles background animation from both the chat and login pages to reduce visual clutter and improve focus.
