* sync to English verion about Istio new design.
refence pr #9324
* sync to English verion about Istio new design.
refence pr #8758
* fixed the case study page translation.
* replace placeholders about blog & news page.
* remove the TODO flag.
* remove unused the i18n parameters.
* fixed the conflict files with other PR about news & blog layout page.
* fixed the category tags in news page can't not switch when use Chinese language issue.
* add Chinese menus items
* move faq module to about subfolder
* upgrade the case study page support i18n.
* add deployment page about Chinese.
* upgrade all "learn more" button text support i18n.
* add ecosystem page about Chinese.
* add service mesh page about Chinese.
* add get involved page about Chinese.
* fixed the lint checking about Kubernetes & VM spelling.
* fixed some review comments.
* change FAQ translation.
* fixed some review comments & conflict
* change some translate words about involve page.
* try to fixed the spelling check in service mesh page.
* change the title desc in service mesh page.
* change Istio spelling in service mesh page.
craigbox
youhonglian
yanrongshi
lifeng
orangegzx
凡梦星尘