Adding verticalOffset property to FluentNotification

[mischreiber]

Platforms Impacted

• iOS
• visionOS
• macOS

Description of changes

Adding a new argument to FluentNotification that allows for custom vertical offset of the shown notification when presented from SwiftUI.

Binary change

Total increase: 8,504 bytes
Total decrease: 0 bytes

File	Before	After	Delta
Total	31,174,120 bytes	31,182,624 bytes	⚠️ 8,504 bytes

Full breakdown

File	Before	After	Delta
FluentNotification.o	644,768 bytes	651,368 bytes	⚠️ 6,600 bytes
__.SYMDEF	4,848,192 bytes	4,850,056 bytes	⚠️ 1,864 bytes
MSFNotification.o	138,632 bytes	138,672 bytes	⚠️ 40 bytes

Verification

New API works! And defaults to original behavior when unmodified.

Visual Verification

Simulator.Screen.Recording.-.iPhone.15.Pro.-.2024-06-12.at.18.21.36.mp4

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