docs(wiki): add 40+ language translations (935 i18n pages) + language hub
Total: 995 wiki pages across 41 languages.
Each translated page includes a navigation header linking back to
the English version and the language hub page.
Languages: ar, az, bg, bn, cs, da, de, es, fa, fi, fr, gu, he, hi,
hu, id, in, it, ja, ko, mr, ms, nl, no, phi, pl, pt, pt-BR, ro, ru,
sk, sv, sw, ta, te, th, tr, uk-UA, ur, vi, zh-CN