Link headings are not distinguished

[ericswpark]

Describe the bug
Headings that are links are not distinguished from ones that aren't which makes it hard to tell whether a heading is a link or not

To Reproduce
Steps to reproduce the behavior:

Write any heading with markdown #, like this

# [This is a link](https://github.com)

Expected behavior
A clear and concise description of what you expected to happen.

"This is a link" should show blue, and have hover CSS so that it is clearly distinguished as a clickable link

Screenshots
If applicable, add screenshots to help explain your problem.
Regular heading:

Link heading:

Desktop (please complete the following information):

• OS: [e.g. iOS] Windows
• Browser [e.g. chrome, safari] Firefox
• Version of the Theme v1.13.0
• Version of Hugo (run a hugo version if unsure) v0.121.2-6d5b44305eaa9d0a157946492a6f319da38de154+extended

Additional context
Add any other context about the problem here.

[lxndrblz]

@ericswpark Hi, what would be a use case for this?

Personally, I can't think of when this could be needed.

[ericswpark]

@lxndrblz I was trying to link to a website in part of a heading, like this:

# Everything goes [here](https://example.com)

But because it's not distinguished viewers didn't know to click on it. I had to separate it out into the text below, but it would be nice if links have link styling and was more visible.

[ericswpark]

The PR I just made addresses part of the problem, where the link lights up on hover. This at least gives some indication that the heading is clickable upon moving the cursor over it, but ideally heading links should have underlines, or have some sort of accent color to distinguish it from regular headings.