fix: update favicon to use Wulf logo PNG format

- Added favicon.png copy of Wulf logo
- Updated metadata to use PNG favicon with multiple size options
- Should fix triangle icon issue in browser tab
- Favicon now properly displays Wulf logo

app/layout.tsx

@@ -13,8 +13,11 @@ export const metadata: Metadata = {
   title: "Pulse - PSA Management System",
   description: "Modern dashboard for Autotask PSA integration with RMM and NMS mapping",
   icons: {
-    icon: "/wulff-logo.png",
-    shortcut: "/wulff-logo.png",
+    icon: [
+      { url: "/favicon.png", sizes: "any" },
+      { url: "/wulff-logo.png", sizes: "32x32", type: "image/png" },
+    ],
+    shortcut: "/favicon.png",
     apple: "/wulff-logo.png",
   },
 };