update component overview page

Author: devalog

fern/products/docs/pages/component-library/default-components/overview.mdx

@@ -63,11 +63,11 @@ Fern includes 20 built-in components for creating interactive documentation. Sel
     Code examples with syntax highlighting and interactive features
   </Card>
   <Card
-    title="Embed"
-    icon="fa-duotone fa-window-restore"
-    href="/docs/writing-content/components/embed"
+    title="Download"
+    icon="fa-duotone fa-download"
+    href="/docs/writing-content/components/download"
   >
-    Embedded local assets like PDFs, videos, and other media
+    Download PDFs and other assets
   </Card>
   <Card
     title="Endpoint request snippet"