feat: support pinia store / `$fetch` alls

[TheAlexLichter]

🆒 Your use case

Some sites, e.g. this one rely mainly on pinia. Right now, the content is still inlined, which can lead to enormous HTML size and thus to crawlers (like the twitter crawler for OG tags) not even crawling the page.

🆕 The solution you'd like

Ideally, the pinia content could also be extracted into the payload too!

I am mainly using netlify-builder image and static route rules, so the current supported scenario (hybrid mode) would be more than sufficient for my use case.

🔍 Alternatives you've considered

No response

ℹ️ Additional info

No response