Update to 3.24.25

Changelog:

• Input
  • Show preedit for compose sequences
  • Support long compose sequences
  • Support compose sequences producing multiple characters
• Inspector: Make the inspector available in non-debug builds
• Printing: Support Avahi-discovered printers better
• Settings: Make cursor aspect ratio setting work
• Theme
  • Disable shadows on maximized, fullscreen and tiled windows
  • Make scrollbars larger