Add daily revalidation to TypeScript pages (#8456)

Added daily revalidation to TypeScript reference pages

This PR adds a revalidation period of 24 hours (86400 seconds) to TypeScript reference pages to ensure content stays fresh while minimizing unnecessary rebuilds.

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## Summary by CodeRabbit

* **Chores**
  * Introduced daily automatic revalidation across multiple portal pages and layouts so content refreshes every 24 hours. This enables incremental static regeneration for affected pages, improving cache freshness and helping ensure users see up-to-date content with reduced stale data risk.

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<!-- start pr-codex -->

---

## PR-Codex overview
This PR introduces a `revalidate` constant set to `86400` seconds (1 day) in multiple files, which specifies that the cached data should be revalidated every day.

### Detailed summary
- Added `export const revalidate = 86400; // revalidate every day` to:
  - `apps/portal/src/app/contracts/extensions/page.tsx`
  - `apps/portal/src/app/react/v5/[...slug]/page.tsx`
  - `apps/portal/src/app/contracts/layout.tsx`
  - `apps/portal/src/app/typescript/v5/[...slug]/page.tsx`
  - `apps/portal/src/app/react/v5/layout.tsx`
  - `apps/portal/src/app/typescript/v5/layout.tsx`
  - `apps/portal/src/app/references/typescript/[version]/[[...slug]]/page.tsx`

> ✨ Ask PR-Codex anything about this PR by commenting with `/codex {your question}`

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Author: jnsdls

apps/portal/src/app/contracts/extensions/page.tsx

@@ -77,3 +77,5 @@ export default async function ExtensionPage() {
     </>
   );
 }
+
+export const revalidate = 86400; // revalidate every day

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

@@ -19,3 +19,5 @@ export const metadata = createMetadata({
   },
   title: "Contracts",
 });
+
+export const revalidate = 86400; // revalidate every day

apps/portal/src/app/react/v5/[...slug]/page.tsx

@@ -27,3 +27,5 @@ export default async function Page(props: PageProps) {
 
   notFound();
 }
+
+export const revalidate = 86400; // revalidate every day

apps/portal/src/app/react/v5/layout.tsx

@@ -20,3 +20,5 @@ export const metadata = createMetadata({
     "A type-safe library to interact with any EVM-compatible blockchain in React applications.",
   title: "thirdweb React SDK",
 });
+
+export const revalidate = 86400; // revalidate every day

apps/portal/src/app/references/typescript/[version]/[[...slug]]/page.tsx

@@ -14,3 +14,5 @@ const config = getTDocPage({
 export default config.default;
 export const generateStaticParams = config.generateStaticParams;
 export const generateMetadata = config.generateMetadata;
+
+export const revalidate = 86400; // revalidate every day

apps/portal/src/app/typescript/v5/[...slug]/page.tsx

@@ -28,3 +28,5 @@ export default async function Page(props: PageProps) {
 
   notFound();
 }
+
+export const revalidate = 86400; // revalidate every day

apps/portal/src/app/typescript/v5/layout.tsx

@@ -20,3 +20,5 @@ export const metadata = createMetadata({
     "A type-safe library to interact with any EVM-compatible blockchain in Node, web and native applications.",
   title: "thirdweb TypeScript SDK",
 });
+
+export const revalidate = 86400; // revalidate every day