fix android bottom sheet height observation and content clipping

- getContentHeight: use max of children heights instead of DFS index 1
  (old approach measured the drag handle, not the content)
- observe height via OnLayoutChangeListener on each direct child instead
  of OnGlobalLayoutListener (RN bypasses requestLayout, so global listener
  never fires for RN-driven layout changes)
- defer state changes during DRAGGING/SETTLING to avoid interrupting
  dismiss swipes, apply when gesture settles
- subtract insets.top from NativeView height on android (matching iOS)
  to prevent scroll content clipping at bottom of full-height sheets

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

modules/bottom-sheet/src/BottomSheetNativeComponent.tsx

@@ -12,7 +12,6 @@ import {
 import {useSafeAreaInsets} from 'react-native-safe-area-context'
 import {requireNativeModule, requireNativeViewManager} from 'expo-modules-core'
 
-import {IS_IOS} from '#/env'
 import {
   type BottomSheetState,
   type BottomSheetViewProps,
@@ -145,8 +144,6 @@ function BottomSheetNativeComponentInner({
   const cornerRadius = rest.cornerRadius ?? 0
   const {height: screenHeight} = useWindowDimensions()
 
-  const sheetHeight = IS_IOS ? screenHeight - insets.top : screenHeight
-
   return (
     <NativeView
       {...rest}
@@ -154,7 +151,7 @@ function BottomSheetNativeComponentInner({
       ref={nativeViewRef}
       style={{
         position: 'absolute',
-        height: sheetHeight,
+        height: screenHeight - insets.top,
         width: '100%',
       }}
       containerBackgroundColor={backgroundColor}>