chore: 更新 Google Fonts 語法

index.html

@@ -5,8 +5,9 @@
   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <meta name="description" content="台灣高鐵列車運行圖">
-  <link href="https://fonts.googleapis.com/css?family=Noto+Sans+TC&display=swap&subset=chinese-traditional"
-    rel="stylesheet">
+  <link rel="preconnect" href="https://fonts.googleapis.com">
+  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+  <link href="https://fonts.googleapis.com/css2?family=Noto+Sans+TC&display=swap" rel="stylesheet">
   <script src="https://cdn.jsdelivr.net/npm/d3@7"></script>
   <!-- Google tag (gtag.js) -->
   <script async src="https://www.googletagmanager.com/gtag/js?id=G-WD0EM6QN6L"></script>