[Bug] ToggleSplitButton lacks styles

[sn4k3]

Check the following items

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Description of the issue

Package Version

6.0.0-beta6

Environment

Windows 11

Expected Behavior

ToggleSplitButton to follow same styles as ToggleButton

Reproduction

<ToggleSplitButton Content="ToggleSplitButton">
    <ToggleSplitButton.Flyout>
        <MenuFlyout>
            <MenuItem Header="Hello"/>
        </MenuFlyout>
    </ToggleSplitButton.Flyout>
</ToggleSplitButton>

Additional Information

This also means, that SplitButton lacks of styles

[kikipoulet]

planned