2cf18e6 coreos: sort entries by pretty name

Authored and Committed by jlebon 3 years ago
    coreos: sort entries by pretty name
    
    Use the pretty name for sorting the entries instead of by the underlying
    format name.
    
    This makes e.g. `Raw (4k Native)` appear close to `Raw` instead of at
    the very top (due to its format being `4k.raw.xz` which ranks higher
    than e.g. `iso` but lower than `raw.xz`).