Localization: re-asses font

[jpetto]

From the original comment:

Localization issue: the font used on the subpages of https://dev.sumo.moz.works/get-involved for locales that include diacritics does not render well and looks rather bad. Could we have another (full internationalized) font instead?

See original comment for screenshots.

[pierreneter]

Is there any progress?

[fitojb]

While the original problematic font has been removed by now, now there exists the same problem with Zilla Slab; specifically, its limited Latin character coverage means it is unusable for Kitsune locales like Vietnamese, which right now show a lot of replacement characters.

[akatsoulas]

The fonts have been updated in the site following Protocol's designs. I am closing this issue. Please file a new one if there are still issues with the fonts.

[pierreneter]

Can we reopen it? there are still issues with the fonts.

https://support.mozilla.org/vi/get-involved