Fix cloned rsx double drop (#2839)

* Implement Rc generational pointers

* Clean up error handling a bit

* start adding tests

* Simplify a few types

* Separate Rc and normal generational boxes

* Add tests for rc drop and read

* Move over the pointer instead of the data in ReadOnlySignal props

* Fix panic on ref drop and release mode builds

* final rc signal cleanup

* use rc generational boxes for event handlers as well

* add a regression test for read only signal cloning

* merge main

---------

Co-authored-by: Jonathan Kelley <jkelleyrtp@gmail.com>

packages/core/src/suspense/component.rs

@@ -50,7 +50,7 @@ where
     }
     fn memoize(&mut self, new: &Self) -> bool {
         let equal = self == new;
-        self.fallback.__set(new.fallback.__take());
+        self.fallback.__point_to(&new.fallback);
         if !equal {
             let new_clone = new.clone();
             self.children = new_clone.children;