Sans-serif font will fallback to serif in some apps

[WordlessEcho]

Firefox

Related issue: mozilla-mobile/fenix#12045

You can add 'Noto Sans CJK [JP/KR/SC/HK/TC] VF' to font.name-list.sans-serif.[ja/ko/zh-CN/zh-HK/zh-TW] in about:config. But the font weight is incorrect (always thin and blod still be fallbacked to serif).

Because this module is design to replace Noto Sans CJK. I will try to convice Mozilla add variable font support to CJK (even more) languages.

Webview in Taobao and QQ

See #6

Arknights

Feedback from a anonymous user: