feat: allow fine tuning of lazy hydration strategy triggers

[GalacticHypernova]

This PR allows for fine tuning of some hydration strategies, like requestIdleCallback and IntersectionObserver. This allows end-developers to have full control over the specifics of when and how to hydrate. This also changes some of the related types to provide better intellisense and avoid any

[github-actions]

Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	98 kB (+7.84 kB)	37.2 kB (+2.62 kB)	33.4 kB (+2.31 kB)
vue.global.prod.js	156 kB (+8.81 kB)	56.9 kB (+2.9 kB)	50.6 kB (+2.54 kB)

Usages

Name	Size	Gzip	Brotli
createApp	53.9 kB (+4.26 kB)	20.9 kB (+1.41 kB)	19 kB (+1.24 kB)
createSSRApp	57.8 kB (+4.6 kB)	22.5 kB (+1.54 kB)	20.5 kB (+1.37 kB)
defineCustomElement	57.9 kB (+5.95 kB)	22.2 kB (+1.93 kB)	20.2 kB (+1.71 kB)
overall	67.4 kB (+4.31 kB)	25.9 kB (+1.43 kB)	23.6 kB (+1.33 kB)

[yyx990803]

This looks good, I'm merging this so we get it out in 3.5 beta.1 to avoid an API change during the beta phase. We can still make further adjustments during beta.