Server does not add trailing slashes

[ThorMutoAsmund]

Describe the bug
Currently the server does not add trailing slashes to URLs. This means that creating a hyperlink relative to the current page will not work.

To Reproduce
Steps to reproduce the behavior:

1. Go to a competition page, e.g. https://www.worldcubeassociation.org/competitions/FTOstervang2024
2. Click on the 'Important for all competitors!' tab
3. The second link on that page that says 'Du kan[ tilmelde dig her]' has the following URL "/competitions/FTOstervang2024/register/"
4. Replacing that URL with just "register" will not go to the registration page. If the server redirected all pages without trailing slash to the same URL but with a trailing slash, simply having "register" as the URL would work

Expected behavior
When on a base competition page, I would expect the URL "register" to go to the registration page of that competition

Fix
Introduce the appropriate redirect rule on the webserver

Desktop (please complete the following information):

• OS: Windows 10
• Browser Chrome
• Version 125.0.6422.142