Move the document trait into a separate crate (#3035)

* add a default head method through eval
* remove the old document trait
* implement document for each platform
* pull out document into a dedicated crate to cut down on shared dependencies
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Co-authored-by: Jonathan Kelley <jkelleyrtp@gmail.com>

packages/web/src/devtools.rs

@@ -8,7 +8,7 @@ use std::time::Duration;
 
 use dioxus_core::ScopeId;
 use dioxus_devtools::{DevserverMsg, HotReloadMsg};
-use dioxus_html::prelude::eval;
+use dioxus_document::eval;
 use futures_channel::mpsc::{unbounded, UnboundedReceiver, UnboundedSender};
 use js_sys::JsString;
 use wasm_bindgen::JsCast;