l10n: add missing italian strings

src/strings/it.js

@@ -3,16 +3,16 @@ module.exports = {
 	"View listings on %@": "Voir les offres sur %@",
 
 	// Itembox header
-	"Community Pricing": "Community Pricing",
+	"Community Pricing": "Prezzo Comunitario",
 	// 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)
+	"Updated %@.": "Aggiornato il %@.",
+	"Trade prices sourced from %@. Currency conversions are approximate.": "Prezzi commerciali forniti da %@. Le conversioni valutarie sono approssimative.", // %@ is always a URL, (eg. prices.tf)
 
 	// Price strings
 	"Data unavailable": "Data unavailable", // sourced from AppleGlot
-	"%@ ref": "%@ ref",
-	"%@ key": "%@ key",
-	"%@ keys": "%@ keys",
+	"%@ ref": "%@ raf",
+	"%@ key": "%@ chiave",
+	"%@ keys": "%@ chiavi",
 
 	// Item quality names, all sourced from TF2 wiki
 	"Normal": "Normale",
@@ -22,5 +22,23 @@ module.exports = {
 	"Strange": "Strano",
 	"Collector's": "Da collezione",
 	"Haunted": "Stregato",
-	"Australium": "Australium"
+	"Australium": "Australium",
+	"Festive": "Festivo",
+
+	// Botkiller names, all sourced from TF2 wiki
+	"Botkiller": "Ammazzabot",
+	"Silver": "Argentato",
+	"Gold": "Dorato",
+	"Rust": "Arrugginito",
+	"Blood": "Insanguinato",
+	"Carbonado": "Carbonado",
+	"Diamond": "Diamante",
+	"Silver Mk.II": "Argentato Mk.II",
+	"Gold Mk.II": "Dorato Mk.II",
+
+	// Killstreak tiers sourced from TF2 wiki
+	"Killstreak Kit": "Kit per Serie omicide",
+	"kt-1": "Standard",
+	"kt-2": "Specializzati",
+	"kt-3": "Professionali",
 }