Release v0.5.5

• Fixed generation refresh after "Build & Switch"
  • Generations list now properly refreshes after completing a "Build & Switch" operation
  • Fixed issue where the generation check was using combo box value instead of actual operation mode
  • Ensures the generations dialog shows the newly created generation immediately
• Enhanced debug mode visibility
  • Tray icons now use different colors in debug mode for easier identification
    • Up-to-date icon: cyan/blue instead of green
    • Updates available icon: darker orange instead of bright orange
    • Unknown status icon: purple/magenta instead of gray/blue
  • Tooltip now indicates "(Debug Mode)" when running with --debug flag