Fix SegmentedItem visibility issue

[AndrewKeepCoding]

Fixes

Fixes #726

PR Type

What kind of change does this PR introduce?

• Bugfix

What is the current behavior?

With the DefaultSegmentedStyle, SegmentedItem is not rendered when its visibility is Collapsed by default then toggled to Visible.

What is the new behavior?

SegmentedItems are rendered when toggled to Visible.

PR Checklist

Please check if your PR fulfills the following requirements:

• Created a feature/dev branch in your fork (vs. submitting directly from a commit on main)
• Based off latest main branch of toolkit
• Tested code with current supported SDKs
• Contains NO breaking changes

Other information

[Arlodotexe]

Seeing this in CI:

The active test run was aborted. Reason: Unable to communicate with test host process.
Terminating app with process ID '2712'.
Results File: D:\a\Windows\Windows\TestResults\wasdk.trx

The active Test Run was aborted because the host process exited unexpectedly. Please inspect the call stack above, if available, to get more information about where the exception originated from.
The test running when the crash occurred: 
ConvertersTests.Test_BoolToObjectConverter.Test_ConvertTrueToBrushWithTypeConversion

Rekicking