Renderers are now packages, not features. (#387)

* feat: use synchronous router design

* feat: function to get router out of dom

* chore: restructure workspace to use renderers as packages, not features

packages/core/src/lib.rs

@@ -101,7 +101,7 @@ pub(crate) mod unsafe_utils {
 /// # Usage
 ///
 ///
-/// ```
+/// ```ignore
 /// let (data) = use_ref(&cx, || {});
 ///
 /// let handle_thing = move |_| {