* Since we have compression available through Bled we might as well use it
* Also validate that the download URL comes from https://github.com/pbatard/Fido
* Also prevent the check for update from running while we are downloading ISOs
* Check compressed DD images for boot capability
* Add DisableLGP setting
* Silence libcdio errors when scanning non ISO images
* Ensure UI displays "No image selected" when relevant
* Also update Bled to latest