[Feature request] Previous and Next page links

[sliekens]

Hi 👋

I'm a user of the SingulinkFX theme for DocFX and I really like it. I have a feature request that I think would improve the user experience. I would like to have previous and next page links at the top/bottom of each page, so that I can easily navigate through the documentation without having to go back to the table of contents. This would be especially helpful for long documents or tutorials. Thank you for your consideration and your great work on this theme.