CSS/properties: add font-smooth (#2746)
CSS/properties: add font-smooth (#2746)

* CSS/properties: add font-smooth

Source: https://developer.mozilla.org/en-US/docs/Web/CSS/font-smooth#Browser_compatibility

* Not on standards track

* CSS/font-smooth: fix Firefox support

Source: https://bugzil.la/857142

* CSS/font-smooth: fix Safari support

* CSS/font-smooth: update Chrome* support

Source: https://github.com/mdn/browser-compat-data/pull/2746#discussion_r216083450

chrisdavidmills/browser-compat-data,teoli2003/browser-compat-data,mdn/browser-compat-data,chrisdavidmills/browser-compat-data,mdn/browser-compat-data