Update primary text color style to be foreground1

[joannaquu]

Platforms Impacted

• iOS
• visionOS
• macOS

Description of changes

Update primary text color style to be foreground1

Binary change

Total increase: 3,920 bytes
Total decrease: -2,904 bytes

File	Before	After	Delta
Total	30,908,368 bytes	30,909,384 bytes	⚠️ 1,016 bytes

Full breakdown

File	Before	After	Delta
LabelTokenSet.o	56,504 bytes	60,288 bytes	⚠️ 3,784 bytes
__.SYMDEF	4,774,672 bytes	4,774,808 bytes	⚠️ 136 bytes
Label.o	134,104 bytes	131,200 bytes	🎉 -2,904 bytes

Verification

Visual Verification

Before	After

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