1.5.1 - Fix release

• Fix compile issue with Flathub builder
• Updated images for AppStream metadata file

1.5.0

• Dropped Qt4 support and welcome to Qt6
• Include 'downgraded' and 'reinstalled' actions (Thanks to @chrisjbillington )
• Added standard Quit Ctrl+Q shortcut (Thanks to @vedgy )
• Improved start-up times (Thanks to @vedgy )
• Added support to AppStream metadata
• Added support for flatpak