Molto bene! (Language updates)

Mambo Italiano!

Italian is here and subject to change. Also, minor changes to other
language string files, mostly adjusting app names to native language
(According to Play Store entries). Also changed "Docs" to "Drive" across
all languages.

Manually copied TxReplay's pull request changes into the french
string.xml without deleting the <item>Wallet</item> line because I don't
know how deleting an array item would affect the app.