switch to a Document trait and introduce Script/Head/Style/Meta components (#2635)

* switch to a Document trait and introduce Script/Head/Style/Meta components

* Fix desktop title

* Insert special elements into the head during the inital SSR render

* Make all head component attributes optional

* hydrate head elements

* improve the server streaming head warning

* Document fullstack head hydration approach

* deduplicate head elements by href

* move Link into head::Link

* document head components

* add meta and title examples

* Fix a few doc examples

* fix formatting

* Add title to playwright tests

* serde is optional on web, but it is enabled by hydrate

* remove leftover console log

packages/fullstack/Cargo.toml

@@ -20,6 +20,7 @@ axum = { workspace = true, features = ["ws", "macros"], optional = true }
 tower-http = { workspace = true, optional = true, features = ["fs"] }
 
 dioxus-lib = { workspace = true }
+generational-box = { workspace = true }
 
 # Dioxus + SSR
 dioxus-ssr = { workspace = true, optional = true }
@@ -71,19 +72,18 @@ tokio = { workspace = true, features = ["rt", "sync", "rt-multi-thread"], option
 dioxus = { workspace = true, features = ["fullstack"] }
 
 [features]
-default = ["hot-reload", "panic_hook"]
+default = ["hot-reload", "panic_hook", "document", "file_engine", "mounted"]
 panic_hook = ["dioxus-web?/panic_hook"]
 hot-reload = ["dioxus-web?/hot_reload", "dioxus-hot-reload/serve"]
 mounted = ["dioxus-web?/mounted"]
 file_engine = ["dioxus-web?/file_engine"]
-eval = ["dioxus-web?/eval"]
+document = ["dioxus-web?/document"]
 web = ["dep:dioxus-web", "dep:web-sys"]
 desktop = ["dep:dioxus-desktop", "server_fn/reqwest", "dioxus_server_macro/reqwest"]
 mobile = ["dep:dioxus-mobile"]
 default-tls = ["server_fn/default-tls"]
 rustls = ["server_fn/rustls"]
 axum = ["dep:axum", "dep:tower-http", "server", "server_fn/axum", "dioxus_server_macro/axum", "default-tls"]
-static-site-generation = []
 server = [
     "server_fn/ssr",
     "dioxus_server_macro/server",