Multilingual support (i18n)

[fmaida]

Would you accept a PR to add multilingual support through i18n to the theme?

[hugo-sid]

Sure ! I look forward to your PR.

[fmaida]

Thanks. This is an example of how the homepage should look if you set the defaultContentLanguage to Italian (it-it):

I'll make a PR as soon as I'll test that everything still works both in Italian and English.