Remove problematic opacity style from container animatedStyle.

This style was originally added to address some lingering-sheet behavior, however, it seems that it also causes some kind of race condition or Reanimated bug. The presence of this opacity rule can cause the container to disappear on occasion. Others independently discovered the same problem here: gorhom#719 (comment)

Since we can't seem to trigger the original problematic behavior, we are reverting this opacity rule.

src/components/bottomSheet/BottomSheet.tsx

@@ -1190,8 +1190,6 @@ const BottomSheetComponent = forwardRef<BottomSheet, BottomSheetProps>(
     //#region styles
     const containerAnimatedStyle = useAnimatedStyle(
       () => ({
-        opacity:
-          Platform.OS === 'android' && animatedIndex.value === -1 ? 0 : 1,
         transform: [
           {
             translateY: animatedPosition.value,