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

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

ollie314/kuma,jwhitlock/kuma,safwanrahman/kuma,ollie314/kuma,SphinxKnight/kuma,yfdyh000/kuma,mozilla/kuma,jwhitlock/kuma,SphinxKnight/kuma,a2sheppy/kuma,mozilla/kuma,a2sheppy/kuma,mozilla/kuma,SphinxKnight/kuma,safwanrahman/kuma,yfdyh000/kuma,escattone/kuma,ollie314/kuma,mozilla/kuma,yfdyh000/kuma,Elchi3/kuma,safwanrahman/kuma,yfdyh000/kuma,escattone/kuma,SphinxKnight/kuma,a2sheppy/kuma,a2sheppy/kuma,jwhitlock/kuma,ollie314/kuma,Elchi3/kuma,Elchi3/kuma,escattone/kuma,a2sheppy/kuma,ollie314/kuma,ollie314/kuma,yfdyh000/kuma,SphinxKnight/kuma,Elchi3/kuma,jwhitlock/kuma,mozilla/kuma,SphinxKnight/kuma,safwanrahman/kuma,safwanrahman/kuma,yfdyh000/kuma,Elchi3/kuma,safwanrahman/kuma,jwhitlock/kuma