l10n: update italian strings

src/strings/it.js

@@ -1,16 +1,26 @@
 module.exports = {
+	// Generic button text, %@ is always a URL (eg. backpack.tf)
 	"View listings on %@": "Voir les offres sur %@",
+
+	// Itembox header
 	"Community Pricing": "Community Pricing",
-	"Updated %@": "Updated %@",
-	"From %@": "From %@",
-	"Data unavailable": "Data unavailable",
+	// Itembox footer
+	"Updated %@": "Updated %@.",
+	"Trade prices sourced from %@. Currency conversions are approximate.": "Trade prices sourced from %@. Currency conversions are approximate.", // %@ is always a URL, (eg. prices.tf)
+
+	// Price strings
+	"Data unavailable": "Data unavailable", // sourced from AppleGlot
+	"%@ ref": "%@ ref",
 	"%@ key": "%@ key",
 	"%@ keys": "%@ keys",
+
+	// Item quality names, all sourced from TF2 wiki
 	"Normal": "Normale",
 	"Genuine": "Autentico",
 	"Vintage": "Vintage",
 	"Unique": "Unico",
 	"Strange": "Strano",
 	"Collector's": "Da collezione",
-	"Haunted": "Stregato"
+	"Haunted": "Stregato",
+	"Australium": "Australium"
 }