fix(iOS): handles pointerEvents for Pressable component

[huextrat]

Description

fixes: #3891
fixes: #3904

This PR implements pointerEvents support for Pressable component from react-native-gesture-handler on iOS. Previously, setting pointerEvents="box-none" (or other modes) had no effect on iOS, while it worked correctly on Android and with React Native's Pressable on iOS.

Android PR: #3927

Implementation Details

The implementation follows React Native's hitTest logic for pointerEvents:

• For box-only: Returns self if point is inside (respecting hitSlop), nil otherwise
• For box-none: Checks subviews only, returns the hit subview or nil
• For none: Always returns nil
• For auto: Uses standard hit testing with shouldHandleTouch logic

The implementation respects hitTestEdgeInsets (hitSlop) for all modes, ensuring consistent behavior with React Native's Pressable.

Test plan

Tested all pointerEvents modes on iOS:

• ✅ pointerEvents="none" - View and subviews don't receive touches
• ✅ pointerEvents="box-none" - View doesn't receive touches, subviews do
• ✅ pointerEvents="box-only" - View receives touches, subviews don't
• ✅ pointerEvents="auto" - Default behavior works as expected

I've used https://github.com/huextrat/repro-pressable-gh to test scenarios

Tested on both old architecture (Paper) and new architecture (Fabric).

edit: pointerEvents with RNGH Pressable is not working on Android

[m-bert]

Thank you for this PR! Just one more thing and it should be ready to go 🎉

[m-bert]

Since I didn't want to bother you anymore I took the liberty of adding some minor changes (newline and header) to match other enums.

Thank you very match for this PR ❤️