fix(alternateContent): fix toggleButton alternate content visual states

[Arieldelossantos]

GitHub Issue:

PR Type

What kind of change does this PR introduce?

• Bugfix

Description

Before	After

PR Checklist

Please check if your PR fulfills the following requirements:

• Commits must be following the Conventional Commits specification
• Tested the changes where applicable:
  • UWP
  • iOS
  • Android
  • WASM
  • MacOS
• Updated the documentation as needed:
  • General Doc Update
  • material-controls-styles.md
  • cupertino-controls-styles.md
  • lightweight-styling.md (LightWeight Styling Resource Keys)
• Contains No breaking changes

  If the pull request contains breaking changes, commit message must contain a detailed description of the action to take for the consumer of this library. As explained by the Conventional Commits specification

[github-actions]

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[Xiaoy312]

another potential candidates for: #1286
attached properties in library code:

Target	Source	Value
AlternateContentPresenter.Opacity	CommonStates\Checked	{Binding Path=(um:ControlExtensions.AlternateContent), RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource MaterialNullToTransparent}, FallbackValue=1, TargetNullValue=1}
AlternateContentPresenter.Opacity	CommonStates\CheckedDisabled	{Binding Path=(um:ControlExtensions.AlternateContent), RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource MaterialNullToTransparent}, FallbackValue=1, TargetNullValue=1}
AlternateContentPresenter.Opacity	CommonStates\CheckedPointerOver	{Binding Path=(um:ControlExtensions.AlternateContent), RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource MaterialNullToTransparent}, FallbackValue=1, TargetNullValue=1}
AlternateContentPresenter.Opacity	CommonStates\CheckedPressed	{Binding Path=(um:ControlExtensions.AlternateContent), RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource MaterialNullToTransparent}, FallbackValue=1, TargetNullValue=1}

@Arieldelossantos you can ignore this message, this is just for documenting