codify "platform" into resolution logic, server-fn/fullstack overhaul (#4596)

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.

packages/html/src/lib.rs

@@ -30,6 +30,8 @@ pub mod input_data;
 pub mod point_interaction;
 mod render_template;
 
+pub use bytes;
+
 #[cfg(feature = "serialize")]
 mod transit;