Pontoon: Update Italian (it) localization of MDN
Pontoon: Update Italian (it) localization of MDN

Localization authors:
- Sandro Della Giustina <gialloporpora@mozillaitalia.org>

SphinxKnight/kuma,jwhitlock/kuma,escattone/kuma,mozilla/kuma,mozilla/kuma,jwhitlock/kuma,escattone/kuma,mozilla/kuma,jwhitlock/kuma,jwhitlock/kuma,SphinxKnight/kuma,safwanrahman/kuma,mozilla/kuma,escattone/kuma,mozilla/kuma,SphinxKnight/kuma,a2sheppy/kuma,safwanrahman/kuma,a2sheppy/kuma,a2sheppy/kuma,Elchi3/kuma,SphinxKnight/kuma,safwanrahman/kuma,Elchi3/kuma,safwanrahman/kuma,safwanrahman/kuma,Elchi3/kuma,a2sheppy/kuma,SphinxKnight/kuma,Elchi3/kuma,Elchi3/kuma,a2sheppy/kuma,SphinxKnight/kuma,safwanrahman/kuma,jwhitlock/kuma