Framework-base-core: Italian translation

Change-Id: If21ad6430295a1557acf0b22b28b258a471845b6
SystemUI: Add missing hdpi resources for left gravity recent panel

Change-Id: Ic2915cb7be01be9e66620e4d7edc530e0d75b404
SystemUI: it Translation polishing

Removed untranslatable rows.I copy/pasted them without
translating but after seeing some Josue's reviews about
other commits i'm realizing that "cleaner is better" lol

Change-Id: Ib0dd24940f230799235a1f46aaeb773b4ddaaf56