Expose Tab Bar Token Pad Height to Consumers

[cbowdoin]

Platforms Impacted

• iOS
• visionOS
• macOS

Description of changes

Exposed a public let of TabBarTokenSet.padHeight for consumers to be able to use if they need to access the iPad height constant for the tab bar view.

Binary change

Total increase: 2,048 bytes
Total decrease: 0 bytes

File	Before	After	Delta
Total	31,258,848 bytes	31,260,896 bytes	⚠️ 2,048 bytes

Full breakdown

File	Before	After	Delta
TabBarView.o	140,080 bytes	141,816 bytes	⚠️ 1,736 bytes
__.SYMDEF	4,881,488 bytes	4,881,800 bytes	⚠️ 312 bytes

Verification

Was able to access the value from an external objective c file.

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