Log Message:
cascadia-ttf: update to 2008.25.

This update to the Cascadia family of fonts brings the following changes:

    We are now generating static TTFs for every named variant
        These static instances will be hinted using ttfautohint, and so will \ 
look different than the variable font at small and intermediate point sizes
    We've temporarily stopped shipping variable OTFs due to some concerns about \ 
overlapping and psautohint
    The heaviest weight of Cascadia has been made a little lighter
    We have aligned the Powerline glyphs and the box-/line-drawing glyphs better \ 
to their metrics and to the letter glyphs
    Diacritic anchors have been added to all alphabetic characters (#282, #330)
    The font now ships with decomposed fi and fl ligatures
    The horn combining diacritic has had its weight fixed somewhat for Bold
    Primes have been redesigned to give them a more "angled" feel (#294)
    Acute and grave have been given additional weight to help differentiate them \ 
from dot (#268)
    The contextual alternate for x used to signify hexadecimal numbers has been \ 
disabled (#285)