Merge liveview into fullstack

## Feature Request

LiveView is a widely used platform of ours, but is too special-cased such that it misses support from tooling (like dx) and features (hydration, re-connect, etc).

We should move it into fullstack - either by retaining current functionality or slightly rethinking the implementation.

We just have too many renderers to keep track of, toolingwise right now, and it's more complex to teach liveview alongside since they both compete with each other and have a different set of tradeoffs.

Ideally all dioxus users start with "web", add in "fullstack features" and drop in some liveview-type functionality where it makes the most sense. Right now users need to choose either Fullstack or Liveview when liveview should really just be a variation of a fullstack component.