It would seem that some EFI BMP loaders are unable to flip the image
and hang when trying to load the UX capsule.
This was a real PITA to debug.
Many thanks to Sean Rhodes <sean@starlabs.systems> for all the help.
This allows much better compression (-60%) than gziping them individually and
also allows us to build the capsule UX images as part of the build stage.
Also add more popular screen resolutions for laptops you can buy in 2021.