feat(html): add scroll method to MountedData (#3722)

* feat(html): add `scroll` method to MountedData

* feat(desktop): implement `scroll` method for DesktopElement

* feat(liveview): implement `scroll` method for LiveviewElement

* feat(web): implement `scroll` method for web_sys::Element

* docs(examples): add new example for `scroll` method

* fix(web): remove unncecessary f64 cast (clippy)

* fix(interpreter): return missing boolean from js

* docs(example): unwrap result instead of discarding its error

* docs(examples): create scroll restoring example on routing

* fix clippy

---------

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

packages/html/src/events/mounted.rs

@@ -39,6 +39,15 @@ pub trait RenderedElementBacking: std::any::Any {
         Box::pin(async { Err(MountedError::NotSupported) })
     }
 
+    /// Scroll to the given element offsets
+    fn scroll(
+        &self,
+        _coordinates: PixelsVector2D,
+        _behavior: ScrollBehavior,
+    ) -> Pin<Box<dyn Future<Output = MountedResult<()>>>> {
+        Box::pin(async { Err(MountedError::NotSupported) })
+    }
+
     /// Set the focus on the element
     fn set_focus(&self, _focus: bool) -> Pin<Box<dyn Future<Output = MountedResult<()>>>> {
         Box::pin(async { Err(MountedError::NotSupported) })
@@ -119,6 +128,16 @@ impl MountedData {
         self.inner.scroll_to(behavior)
     }
 
+    /// Scroll to the given element offsets
+    #[doc(alias = "scrollTo")]
+    pub fn scroll(
+        &self,
+        coordinates: PixelsVector2D,
+        behavior: ScrollBehavior,
+    ) -> Pin<Box<dyn Future<Output = MountedResult<()>>>> {
+        self.inner.scroll(coordinates, behavior)
+    }
+
     /// Set the focus on the element
     #[doc(alias = "focus")]
     #[doc(alias = "blur")]