Link to hidden slide

[c-harding]

Is your feature request related to a problem? Please describe.

I would like to be able to add links to slides that are not shown during the normal pagination. This way, I can prepare bonus content that I can show if I get a question or have more time than expected.

Describe the solution you'd like

Slides that are hidden should be reachable by link. It should be possible to put a link in the description.

Example

---
---

# Generic slide

Info

<!--
Slides in case I get questions:

- <Link to="foobar">Foobar</Link>
-->

---
hide: true
routeAlias: foobar
---

# Foobar

Describe alternatives you've considered

I could build a custom link component, but I’m unsure how to programmatically unhide a slide (and it should hide again when I navigate away). Additionally, I don’t know how to get custom components working in the notes.