ContentDialog why set all TextBlock Wrap at the top level style

[JerryJian]

FluentAvalonia/src/FluentAvalonia/Styling/ControlThemes/FAControls/ContentDialogStyles.axaml

Lines 55 to 60 in 2e46a93

	<Grid.Styles>
	<!--Make sure text wrapping is on-->
	<Style Selector="TextBlock">
	<Setter Property="TextWrapping" Value="Wrap"/>
	</Style>
	</Grid.Styles>

This cause all the TextBlock in the content of ContentDialog Wrap, including ComboBox.