* allow `--server` only builds!
* rollback example
* capture `/:route` routes
* fix: properly implement file uploads in forms
* implement desktop form uploads
* Performant serialization of form bytes
* finish up file stuff
* cleanups
* add request headers to streaming context
* remove some unwraps
overhaul dioxus fullstack using a new implementation of server_fn
This PR is a complete rewrite of dioxus fullstack designed to improve compatibility with axum and to fix a number of compilation errors based on feature flag unification plumbing through macros.
Jonathan Kelley