Fix autofill event downcast - ignore events of the wrong type (#5379)

* fix autofill events

* ignore the wrong type of event like we do in desktop

* check the event type before dispatch instead of panicing on downcast

* clean up conversion

* remove example

* pull out shared event list

* pull in deserialize_raw

* unified event list

* prettier comment

* restore test

* restore alias

* normal doc comments

* move over comments

* minimize diff

* remove alias, was moved into the macro

packages/html/src/events/image.rs

@@ -94,13 +94,3 @@ pub trait HasImageData: std::any::Any {
     /// return self as Any
     fn as_any(&self) -> &dyn std::any::Any;
 }
-
-impl_event! [
-    ImageData;
-
-    /// onerror
-    onerror
-
-    /// onload
-    onload
-];