Enable redis

Author: onnimonni

site.config.ts

@@ -51,7 +51,7 @@ export default siteConfig({
   // whether or not redis is enabled for caching generated preview images (optional)
   // NOTE: if you enable redis, you need to set the `REDIS_HOST` and `REDIS_PASSWORD`
   // environment variables. see the readme for more info
-  isRedisEnabled: false,
+  isRedisEnabled: true,
 
   // whether to use the default notion navigation style or a custom one with links to
   // important pages. To use `navigationLinks`, set `navigationStyle` to `custom`.