[TOOL-3346] Portal: Add Nebula icon support in dynamic OG image generation (#6199)

Author: MananTank

apps/portal/public/og/icons/nebula.svg

@@ -12,6 +12,10 @@ export default async function Layout(props: { children: React.ReactNode }) {
 
 export const metadata = createMetadata({
   title: "thirdweb Nebula Documentation",
+  image: {
+    title: "Nebula Docs",
+    icon: "nebula",
+  },
   description:
     "thirdweb Nebula Docs : explore the Nebula API Reference and unlock the most powerful AI to interact with the blockchain yet.",
 });

apps/portal/src/app/nebula/layout.tsx

@@ -20,6 +20,7 @@ type DynamicImageOptions = {
     | "storage"
     | "changelog"
     | "dotnet"
+    | "nebula"
     | "unreal-engine"
     | "insight";
 };