Intent to ship: math-style, math-depth, font-size: math

[Frédéric Wang]

    As of today I intend to turn on related CSS properties :
math-style, math-depth and font-size: math on by default. They have been
developed behind the layout.css.math-style.enabled and
layout.css.math-depth.enabled preferences.

Status in other browsers is

1. math-depth, math-style, font-size: math has shipped since Chrome 109

2. math-style has shipped since Safari 14.1

    Bug to turn on by default:
https://bugzilla.mozilla.org/show_bug.cgi?id=1845516

    Standards:
https://w3c.github.io/mathml-core/#the-math-style-property
https://w3c.github.io/mathml-core/#the-math-script-level-property
https://drafts.csswg.org/css-fonts/#font-size-prop


    These features were previously discussed in these "Intent to
prototype" threads:

https://groups.google.com/g/mozilla.dev.platform/c/qfDohfGlNlE

https://groups.google.com/g/mozilla.dev.platform/c/1hQQ7ISudGo/m/jLacrvYeBQAJ

--
Frédéric Wang