Remove native and web features from dioxus-html (#3006)

* remove native and web features from dioxus-html

* Fix downcasting web events

* Fix desktop with tokio disabled

packages/html/src/events/mounted.rs

@@ -1,7 +1,7 @@
 //! Handles querying data from the renderer
 
 use std::{
-    fmt::{Display, Formatter},
+    fmt::{Debug, Display, Formatter},
     future::Future,
     pin::Pin,
 };
@@ -70,6 +70,12 @@ pub struct MountedData {
     inner: Box<dyn RenderedElementBacking>,
 }
 
+impl Debug for MountedData {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.debug_struct("MountedData").finish()
+    }
+}
+
 impl<E: RenderedElementBacking> From<E> for MountedData {
     fn from(e: E) -> Self {
         Self { inner: Box::new(e) }