Adjusting separatorLeadingInset calculation in TableViewCell

[sophialee0416]

Platforms Impacted

• iOS
• macOS

Description of changes

An update to #1093

In the previous PR, it was discovered that since the Divider was added to the cell's contentView, we needed to accommodate for the additional safeAreaInset. This means that while it is no longer needed for the .inset Separator Type, we need to include it for the .full type instead.

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

[edjamesmsft]

Is it expected that the color changed in the after shot?

[edjamesmsft]

Have you checked dark mode?

[sophialee0416]

Is it expected that the color changed in the after shot?

I don't really notice a color change, could you point it out? I didn't touch the colors so shouldn't have been impacted in this change
edit: #1166 (comment)