* Run screenshotter using Chrome 83 and Firefox 76
* Update screenshots
* Update NegativeSpace-chrome screenshot
The new screenshot is correct as per #1194.
* Update Units-chrome screenshot
The new screenshot is correct as per #732 and compared to Firefox.
* Update screenshots
* Reorganize some glyphs
* Remove mathdefault
Numerals are textord and it was never reachable.
* Use PUA for \imath and \jmath
* Update katex-fonts
* Update tests
* Update src/buildCommon.js
* Update screenshots
* Add comment regarding usage of PUA in \imath and \jmath
* Update fonts
Co-authored-by: Erik Demaine <edemaine@mit.edu>