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.

examples/10-integrations/bevy/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+name = "bevy-example"
+version = "0.0.0"
+edition = "2021"
+license = "MIT"
+publish = false
+
+[features]
+default = ["desktop"]
+desktop = ["dioxus/desktop"]
+native = ["dioxus/native"]
+tracing = ["dep:tracing-subscriber", "dioxus-native/tracing"]
+
+[dependencies]
+bevy = { version = "0.16" }
+dioxus-native = { workspace = true }
+dioxus = { workspace = true }
+wgpu = { workspace = true }
+color = "0.3"
+tracing-subscriber = { workspace = true, optional = true }