feat: Let Grid and Grid Cell render any structural tag

[VincentSmedinga]

Describe the pull request

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What

This provides more options for Grid and Grid Cell to render a semantic HTML element instead of a div.

Why

People should be able to apply the features of these components to any HTML element. Otherwise, they must add an unnecessary wrapper element.

How

Extracted from #1607. Added options to the as prop, extracted a configuration object for it, included all of them in the unit tests.

Checklist

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