Type has been replaced with a bit mask size whose value corresponds
to the number of u8 ranges of 256 characters per bit. Given 0x110000
possible glyphs in Unicode 13.0, its maximum size is currently 544
and can be expanded if needed.
Adds the 0xFFFD replacement character to Csilla/KaticaRegular fonts
and fixes dozens of alignment errors in the Latin character sets.
When building userland with UBSAN enabled (#7434), we were getting
spammed to death by unaligned access errors.
Fix these by adding 2 bytes of padding to the FontFileHeader struct,
and adjusting all our font files to match the new format. :^)
