- Updated `next.config.ts` to allow images from various external sources, including LinkedIn and GitHub.
- Refactored `ProfilePage` to improve layout and display user avatar, name, and role more prominently.
- Enhanced `AuthButton` to show user avatar if available, improving user experience.
- Updated authentication logic in `auth.ts` to include user avatar and role in session management.
- Extended JWT type definitions to support new user fields (firstName, lastName, avatar, role) for better user data handling.
