Retrieves a code representing the site's language.
The retrieved language code corresponds to the main site language as found in the General Info section of a site's dashboard.
Note: If you have a multilingual site, and it's being viewed in a language
that's not the main site language, the language property still returns
the main site language. To work with the languages of a multilingual site,
use the Multilingual API.
This method doesn't return any custom errors, but may return standard errors. Learn more about standard Wix errors.