Geometry.Combine() Incorrect Parameter Type

[robloo]

Describe the bug

Geometry instead of RectangleGeometry should be used here:

Avalonia/src/Avalonia.Base/Media/Geometry.cs

Lines 235 to 238 in 254652f

	public static Geometry Combine(Geometry geometry1, RectangleGeometry geometry2, GeometryCombineMode combineMode, Transform? transform = null)
	{
	return new CombinedGeometry(combineMode, geometry1, geometry2, transform);
	}

To fix this as a non-breaking change we are going to have to add a new method and then obsolete the current one for removal in v12.

That said it probably should exist as a CombinedGeometry.Create() method rather than where it is today. However, it does follow WPF: https://learn.microsoft.com/en-us/dotnet/api/system.windows.media.geometry.combine?view=windowsdesktop-8.0

To Reproduce

See Avalonia source.

Expected behavior

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Screenshots

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Environment

• OS: [e.g. Windows, Mac, Linux (State distribution), Android, iOS, Browser]
• Avalonia-Version: [e.g. 11.x.y or 0.10.x]

Additional context

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