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/tailwind/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+name = "dioxus-tailwind"
+version = "0.0.0"
+authors = []
+edition = "2021"
+description = "A tailwindcss example using Dioxus"
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/DioxusLabs/dioxus/"
+homepage = "https://dioxuslabs.com"
+documentation = "https://dioxuslabs.com"
+publish = false
+
+[dependencies]
+manganis = { workspace = true }
+dioxus = { workspace = true }
+
+[features]
+default = ["desktop"]
+web = ["dioxus/web"]
+desktop = ["dioxus/desktop"]