Use typed Element in ref to remove cast in usage (#828)

web/core/src/jsMain/kotlin/androidx/compose/web/attributes/AttrsBuilder.kt

@@ -12,7 +12,7 @@ open class AttrsBuilder<TElement : Element> : EventsListenerBuilder() {
     val styleBuilder = StyleBuilderImpl()
 
     val propertyUpdates = mutableListOf<Pair<(Element, Any) -> Unit, Any>>()
-    var refEffect: (DisposableEffectScope.(Element) -> DisposableEffectResult)? = null
+    var refEffect: (DisposableEffectScope.(TElement) -> DisposableEffectResult)? = null
 
     fun style(builder: StyleBuilder.() -> Unit) {
         styleBuilder.apply(builder)
@@ -30,7 +30,7 @@ open class AttrsBuilder<TElement : Element> : EventsListenerBuilder() {
     fun tabIndex(value: Int) = attr(TAB_INDEX, value.toString())
     fun spellCheck(value: Boolean) = attr(SPELLCHECK, value.toString())
 
-    fun ref(effect: DisposableEffectScope.(Element) -> DisposableEffectResult) {
+    fun ref(effect: DisposableEffectScope.(TElement) -> DisposableEffectResult) {
         this.refEffect = effect
     }
 

web/core/src/jsMain/kotlin/androidx/compose/web/elements/Base.kt

@@ -89,8 +89,8 @@ inline fun <TScope, T, reified E : Applier<*>> ComposeDomNode(
     currentComposer.endNode()
 }
 
-class DisposableEffectHolder(
-    var effect: (DisposableEffectScope.(Element) -> DisposableEffectResult)? = null
+class DisposableEffectHolder<TElement: Element>(
+    var effect: (DisposableEffectScope.(TElement) -> DisposableEffectResult)? = null
 )
 
 @Composable
@@ -100,7 +100,7 @@ fun <TElement : Element> TagElement(
     content: (@Composable ElementScope<TElement>.() -> Unit)?
 ) {
     val scope = remember { ElementScopeImpl<TElement>() }
-    val refEffect = remember { DisposableEffectHolder() }
+    val refEffect = remember { DisposableEffectHolder<TElement>() }
 
     ComposeDomNode<ElementScope<TElement>, DomElementWrapper, DomApplier>(
         factory = {