[jitsi-dev] jitsi-meet italian language

Hi Dev,
I have added the Italian language to the jitsi meet in my own locale repo.
I have also created a new pull request (
https://github.com/jitsi/jitsi-meet/pull/249) with it.

This is my first contribution to the project and I don't know if this patch
is viable for you or if there're good practices to follow. Just let me know
your preferred method and I'll apply that