Properly deprecate UITextItemInteraction for iOS 17

[mischreiber]

Platforms Impacted

• iOS
• visionOS
• macOS

Description of changes

Our public API on iOS includes UITextItemInteraction, which is deprecated in iOS 17. This PR marks it as deprecated as well, and provides an alternate implementation using Apple's recommended replacement.

Bonus: we now support this API on visionOS too! 🥳

Binary change

Total increase: 13,040 bytes
Total decrease: 0 bytes

File	Before	After	Delta
Total	31,325,696 bytes	31,338,736 bytes	⚠️ 13,040 bytes

Full breakdown

File	Before	After	Delta
TableViewHeaderFooterView.o	299,672 bytes	309,216 bytes	⚠️ 9,544 bytes
__.SYMDEF	4,872,728 bytes	4,875,448 bytes	⚠️ 2,720 bytes
FocusRingView.o	848,736 bytes	849,512 bytes	⚠️ 776 bytes

Verification

Tested that both default and custom links work as expected, on both iOS and visionOS.

Visual Verification

iOS	visionOS

Pull request checklist

This PR has considered:

• Light and Dark appearances
• iOS supported versions (all major versions greater than or equal current target deployment version)
• VoiceOver and Keyboard Accessibility
• Internationalization and Right to Left layouts
• Different resolutions (1x, 2x, 3x)
• Size classes and window sizes (iPhone vs iPad, notched devices, multitasking, different window sizes, etc)
• iPad Pointer interaction
• SwiftUI consumption (validation or new demo scenarios needed)
• Objective-C exposure (provide it only if needed)

Microsoft Reviewers: Open in CodeFlow