Highlight with badges new and recently updated documentation pages

Hello tanstack staff

I want to add a small request that i believe it will be for the benefit of everyone.

I saw in tanstack ai documentation form tanstack website, that the titles of guide sections have a badge "new" attached to them in sidebar nav which is awesome! It helps me understand whats going on more easly and keep myself updated with the doc.

The problem is that this pattern isnt followed for other libraires.

For instance ts query prefetch topic was updated, but bcs it doesnt have the badge "new/update" I didnt even know about it. Luckly i found because I checked github.

So it would be awesome if you add this when you do documentation changes! Thank you very much.

Esamina il pattern esistente del badge "new" nella barra laterale della documentazione di TanStack AI, quindi confrontalo con la navigazione della documentazione delle altre librerie. Definisci come vengono identificate le pagine nuove o aggiornate di recente e verifica che i badge pertinenti vengano visualizzati in modo coerente dopo le modifiche alla documentazione.