Resolve issue when last item of a composite line is non-text

[andydotxyz]

Fixes #2695

Checklist:

• Tests included.
• Lint and formatter run with no errors.
• Tests all pass.

[Jacalz]

Should this really show the hovered line all the way to the end? Otherwise it's looking good.

[andydotxyz]

That is a good question @Jacalz, but not one with a simple answer.
I'd agree that the visual outcome is not desirable - but if the element was something other than a link (image etc) should it take up the space? Maybe it is a special case for Hyperlink, or maybe the hyperlink should only underline under text instead of full width? I think it's a separate issue as if you put a link into a window content it will do the same outside of RichText.

[Jacalz]

Okay, I see. I personally think it should only highlight under the actual text. Seems more sensible to me.