feat: add support for festive weapon variants

on schema update, festive variants are linked. on content injection, if if finds a festive variant, it adds price rows for Festive and Strange Festive.

src/content/content.ts

@@ -237,6 +237,42 @@ async function inject() {
 		}))
 	}
 
+	// Check item schema for Festive variant of current defindex
+	if(itemSchema[itemIndex].festiveVariant != null) {
+		promises.push(new Promise(async (resolve) => {
+			logDebug(`Fetching price for Festive ${itemName}`)
+			var data: ItemPriceData | null
+			try {
+				data = await fetchPrice(token, `${itemSchema[itemIndex].festiveVariant};6`, currentTime);
+				updateTime = new Date(data.update)
+			} catch {
+				log(`Festive ${itemName} is unpriced or unavailable, skipping...`)
+			}
+
+			const priceRow = createPriceRow($T("Festive"), data, keyPrice, locale, "https://wiki.teamfortress.com/wiki/Festive_weapons")
+
+			priceRows.push({quality: 97, row: priceRow})
+			resolve()
+			return
+		}))
+		promises.push(new Promise(async (resolve) => {
+			logDebug(`Fetching price for Strange Festive ${itemName}`)
+			var data: ItemPriceData | null
+			try {
+				data = await fetchPrice(token, `${itemSchema[itemIndex].festiveVariant};11`, currentTime);
+				updateTime = new Date(data.update)
+			} catch {
+				log(`Strange Festive ${itemName} is unpriced or unavailable, skipping...`)
+			}
+
+			const priceRow = createPriceRow($T("Strange Festive"), data, keyPrice, locale, "https://wiki.teamfortress.com/wiki/Festive_weapons")
+
+			priceRows.push({quality: 98, row: priceRow})
+			resolve()
+			return
+		}))
+	}
+
 	Promise.all(promises).then(() => {
 		priceRows.sort((a, b) => {
 			// Sort 6 first always, then numerically