docs(gateway): Correct the title for NestJS on the left menu (#6611)

Author: ardatan

packages/web/docs/src/content/gateway/deployment/node-frameworks/_meta.ts

@@ -6,4 +6,5 @@ export default {
   uwebsockets: 'µWebSockets.js',
   nextjs: 'Next.js',
   sveltekit: 'SvelteKit',
+  nestjs: 'NestJS',
 };