Update apps/portal/src/app/vault/page.mdx

Co-authored-by: graphite-app[bot] <96075541+graphite-app[bot]@users.noreply.github.com>
Signed-off-by: samina <[email protected]>

Author: saminacodes

apps/portal/src/app/vault/page.mdx

@@ -5,7 +5,7 @@ import { ArrowLeftRight, UserLock, Users, Wallet } from "lucide-react";
 
 export const metadata = createMetadata({
 	title: "thirdweb Vault",
-	description: "An open-source, backend server that reads, writes, and deploys contracts at production scale.",
++	description: "An open-source, secure key management service for storing, managing, and protecting cryptographic keys and secrets.",
 });