* Lossless image optimization (using ImageOptim).
This shouldn't change the visual appearance of any images. ImageOptim
was run with the highest compression setting except that JPEG metadata
stripping was disabled because some users prefer to avoid stripping
JPEG metadata.
* Update READMEs that have Changelogs for themes impacted by lossless image optmization change.
* Archeo: Add fonts to theme.json
* Add archeo_preload_webfonts function back in
* Also replace the fonts in Stewart
* Use theme.json fonts for Livro
* Add fonts for Remote to theme.json
* Remove preload fuctions and use on the font files
Co-authored-by: Sarah Norris <sarah@sekai.co.uk>