Speed-up Border rendering by avoiding useless pass during size allocation

[albyrock87]

Description of Change

While updating the frame from Handler we set Width and Height.
Each of them triggers border mapping:

The first one is useless as the other dimension will change right after.
We can avoid this by batching the change on SizeAllocated:

maui/src/Controls/src/Core/VisualElement/VisualElement.cs

Lines 1718 to 1733 in 4b8e604

	void UpdateBoundsComponents(Rect bounds)
	{
	_frame = bounds;
	BatchBegin();
	X = bounds.X;
	Y = bounds.Y;
	Width = bounds.Width;
	Height = bounds.Height;
	SizeAllocated(Width, Height);
	SizeChanged?.Invoke(this, EventArgs.Empty);
	BatchCommit();
	}

This brings us to a better result:

Issues Fixed

Fixes #24843
Contributes to #24123

[PureWeen]

/azp run

[azure-pipelines]

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