Add icons source materials

src/masks/index.html

@@ -8,7 +8,7 @@
 	<meta property="og:description" content="[#]lang:meta.page_og_desc[#]" />
 	<meta property="og:type" content="website" />
 	<meta property="og:url" content="[#]server[#]" />
-	<meta property="og:image" content="images/ogp.png" />
+	<meta property="og:image" content="images/icons/ogp.png" />
 	<meta property="og:locale" content="[#]lang:meta.locale[#]" />
 	<link rel="icon" type="image/png" href="images/icons/favicon-96x96.png?v=20260525" sizes="96x96" />
 	<link rel="icon" type="image/svg+xml" href="images/icons/favicon.svg?v=20260525" />