Bug 935877 - Home page: enable VTCS and Lightbeam for more locales

Added locales: 
Lightbeam: et, hr, xh
VTCS: ar, ca, cs, et, hy-AM, hr, ko, nl, pt-BR, ru

Fixed alphabetical order (es-ES comes before es-MX)

Please keep this PR open until next push to prod, so I can keep adding locales as they become available.