Feature request: Add hoverEffect(_:) support for InlineElement

[treastrain]

Due to commit eb9136d in #142, hoverEffect(_:) can no longer be called on the current InlineElement due to a missing protocol conformance.

This pull request restores support for hoverEffect(_:) on InlineElement.

[treastrain]

@JPToroDev @twostraws

I'm proposing to restore support for a feature that was broken by the changes in #142 (commit eb9136d). Could you please review this change?

[twostraws]

Thank you for this contribution! It looks good to me, although I'm curious about the EmptyHoverEffect rename – could you add a little reasoning around that?

[treastrain]

@twostraws Thank you very much for your review and your comment!

Regarding the rename from EmptyHoverEffect to EmptyHTMLHoverEffect, I made this change because the original EmptyHoverEffect stopped conforming to the InlineElement protocol after #142 and now conforms only to HTML. This was one of the main reasons I created this pull request.

I initially considered extending the existing EmptyHoverEffect so that it would conform to both HTML and InlineElement. However, both protocols define an associated type Body and a body property with the same name but incompatible requirements: the HTML version uses the @HTMLBuilder result builder and must return an AnyHTML value, whereas the InlineElement version uses the @InlineElementBuilder result builder and must return some InlineElement.

Because of these conflicting constraints, a single type cannot satisfy both protocols simultaneously. I also considered whether the @_implements attribute could help bridge this gap, but it turned out not to be applicable in this particular case.

For these reasons, I introduced two separate structs—EmptyHTMLHoverEffect and EmptyInlineElementHoverEffect—so that each can conform appropriately to its respective protocol. I hope this clarifies the reasoning behind the rename, and I am happy to revise the naming if you would prefer a different approach.

[twostraws]

That's very clear – thank you!