- Increased all sidebar navigation icons from text-sm to text-xl for better visibility
- Moved user information and logout button from header to sidebar footer
- Added user avatar with name and email in expanded sidebar state
- Collapsed sidebar shows avatar icon and logout icon button stacked vertically
- Simplified header by removing user badge and logout button
- Added version info (v1.0.0) in sidebar footer
- Improved responsive design for both collapsed and expanded states
