[🚀 Feature]: Add ControlOrMeta value

[RenderMichael]

Feature and motivation

There are times when we want to press the "copy" keyboard shortcut. However, that option is Ctrl+c on Windows/Linux, and Command+c on a Mac.

This feature is needed even in our own tests:

selenium/dotnet/test/common/TypingTest.cs

Lines 745 to 748 in ff7fa52

	private string PrimaryModifier()
	{
	return (RuntimeInformation.IsOSPlatform(OSPlatform.OSX)) ? Keys.Command : Keys.Control;
	}

Playwright has a helper for this on its keyboard: ControlOrMeta. We should have the same.

Usage example

element.SendKeys(Keys.ControlOrMeta + "x");

[github-actions]

@RenderMichael, thank you for creating this issue. We will troubleshoot it as soon as we can.

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