Investigate offloading entire scripts as a server proxy

[harlan-zw]

Theoretically, we can proxy all of the client requests to be sent by the server, meaning we also technically don't need to load the client-side script at all.

This would require writing our own implementation for tracking the page events, this should be based on Plausible as they seem quite performant.

Inspo: https://developers.cloudflare.com/zaraz/

This should be fairly minimal to support as we can stub out he core functions already using the useScript API.

[harlan-zw]

https://github.com/nuxt/scripts/tree/feat/server-events

It can be done but may be quite hacky