font load detection

src/main/resources/static/js/homecard.js

@@ -85,3 +85,15 @@ function initializeCards() {
 }
 
 window.onload = initializeCards;
+
+  document.addEventListener("DOMContentLoaded", function() {
+    const materialIcons = new FontFaceObserver('Material Symbols Rounded');
+    
+    materialIcons.load().then(() => {
+      document.querySelectorAll('.feature-card.hidden').forEach(el => {
+        el.classList.remove('hidden');
+      });
+    }).catch(() => {
+      console.error('Material Symbols Rounded font failed to load.');
+    });
+  });