fix: preload room qr codes

output/main.js

@@ -435,18 +435,21 @@ function preloadImages() {
 	);
 	const icons = rows.map(
 		rowElement => rowElement.getAttribute(ATTRIBUTES.ROW.ROOM_ICON)?.split(":")?.[0]
-	)
+	);
+	const qrCodes = rows.map(
+		rowElement => communityQRCodeURL(rowElement.getAttribute(ATTRIBUTES.ROW.IDENTIFIER))
+	);
 	for (const identifier of identifiers) {
 		const image = new Image();
 		image.src = communityQRCodeURL(identifier);
 		preloadedImages.push(image);
 	}
-	for (const icon of icons) {
-		if (!icon) {
+	for (const url of [...icons, ...qrCodes]) {
+		if (!url) {
 			continue;
 		}
 		const image = new Image();
-		image.src = icon;
+		image.src = url;
 		preloadedImagesNew.push(image);
 	}
 	preloadedImages = preloadedImagesNew;