Convert ReactScrollView and ReactNestedScrollView to Kotlin

Summary:
Convert `ReactScrollView.java` to `ReactScrollView.kt` and update the `generate-nested-scroll-view.js` script to generate `ReactNestedScrollView.kt` from the Kotlin source.

Key changes:
- `ReactScrollView.java` replaced by idiomatic `ReactScrollView.kt`
- `ReactNestedScrollView.java` replaced by generated `ReactNestedScrollView.kt`
- Generation script updated for Kotlin source/output file paths and transformations
- BUCK file updated to reference `.kt` files in the verification genrule
- `ReactScrollViewManager.kt` updated to use Kotlin property access syntax for `scrollEnabled`, `stateWrapper`, and `fadingEdgeLengthStart/End`
- Public API surface preserved: only additive `synthetic` constructor from `JvmOverloads`

Changelog:
[Android][Changed] - Convert `ReactScrollView` and `ReactNestedScrollView` from Java to Kotlin

Differential Revision: D107236882

Author: cortinico

packages/react-native/ReactAndroid/api/ReactAndroid.api

@@ -5598,6 +5598,7 @@ public final class com/facebook/react/views/scroll/ReactHorizontalScrollViewMana
 public class com/facebook/react/views/scroll/ReactScrollView : android/widget/ScrollView, android/view/View$OnLayoutChangeListener, android/view/ViewGroup$OnHierarchyChangeListener, com/facebook/react/uimanager/ReactClippingViewGroup, com/facebook/react/uimanager/ReactOverflowViewWithInset, com/facebook/react/views/scroll/ReactAccessibleScrollView, com/facebook/react/views/scroll/ReactScrollViewHelper$HasFlingAnimator, com/facebook/react/views/scroll/ReactScrollViewHelper$HasScrollEventThrottle, com/facebook/react/views/scroll/ReactScrollViewHelper$HasScrollState, com/facebook/react/views/scroll/ReactScrollViewHelper$HasSmoothScroll, com/facebook/react/views/scroll/ReactScrollViewHelper$HasStateWrapper, com/facebook/react/views/scroll/VirtualViewContainer {
 	public fun <init> (Landroid/content/Context;)V
 	public fun <init> (Landroid/content/Context;Lcom/facebook/react/views/scroll/FpsListener;)V
+	public synthetic fun <init> (Landroid/content/Context;Lcom/facebook/react/views/scroll/FpsListener;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
 	public fun abortAnimation ()V
 	public fun dispatchGenericMotionEvent (Landroid/view/MotionEvent;)Z
 	public fun draw (Landroid/graphics/Canvas;)V
@@ -5659,7 +5660,6 @@ public class com/facebook/react/views/scroll/ReactScrollView : android/widget/Sc
 	public fun setFadingEdgeLengthEnd (I)V
 	public fun setFadingEdgeLengthStart (I)V
 	public fun setLastScrollDispatchTime (J)V
-	public fun setMaintainVisibleContentPosition (Lcom/facebook/react/views/scroll/MaintainVisibleScrollPositionHelper$Config;)V
 	public fun setOverflow (Ljava/lang/String;)V
 	public fun setOverflowInset (IIII)V
 	public fun setPagingEnabled (Z)V
@@ -5925,6 +5925,28 @@ public abstract interface class com/facebook/react/views/scroll/VirtualView {
 	public abstract fun onModeChange (Lcom/facebook/react/views/virtual/VirtualViewMode;Landroid/graphics/Rect;)V
 }
 
+public abstract class com/facebook/react/views/scroll/VirtualViewContainerState {
+	public static final field Companion Lcom/facebook/react/views/scroll/VirtualViewContainerState$Companion;
+	public fun <init> (Landroid/view/ViewGroup;)V
+	public static final fun create (Landroid/view/ViewGroup;)Lcom/facebook/react/views/scroll/VirtualViewContainerState;
+	protected final fun getEmptyRect ()Landroid/graphics/Rect;
+	protected final fun getPrerenderRatio ()D
+	protected final fun getPrerenderRect ()Landroid/graphics/Rect;
+	protected final fun getScrollView ()Landroid/view/ViewGroup;
+	protected abstract fun getVirtualViews ()Ljava/util/Collection;
+	protected final fun getVisibleRect ()Landroid/graphics/Rect;
+	public fun onChange (Lcom/facebook/react/views/scroll/VirtualView;)V
+	public fun remove (Lcom/facebook/react/views/scroll/VirtualView;)V
+	protected abstract fun updateModes (Lcom/facebook/react/views/scroll/VirtualView;)V
+	public static synthetic fun updateModes$default (Lcom/facebook/react/views/scroll/VirtualViewContainerState;Lcom/facebook/react/views/scroll/VirtualView;ILjava/lang/Object;)V
+	protected final fun updateRects ()V
+	public final fun updateState ()V
+}
+
+public final class com/facebook/react/views/scroll/VirtualViewContainerState$Companion {
+	public final fun create (Landroid/view/ViewGroup;)Lcom/facebook/react/views/scroll/VirtualViewContainerState;
+}
+
 public class com/facebook/react/views/swiperefresh/ReactSwipeRefreshLayout : androidx/swiperefreshlayout/widget/SwipeRefreshLayout {
 	public fun <init> (Lcom/facebook/react/bridge/ReactContext;)V
 	public fun canChildScrollUp ()Z