GUI
- Fix line style support for links
- Fix cannot add IOS in preferences
- Fix cannot add IOU in preferences
- Upgrade dependencies
- Drop Python 3.8 support
- Display a warning if a SVG image format isn't supported
- Fix error in profile selection window after PyQt6 migration
Server
- Fix telnet keepalive options on macOS
- Upgrade dependencies
- Drop Python 3.8 support