Bug: Trailing slashes should cause a redirect, not a 404

e.g. https://hero.handmade.network/forums/code-discussion/ 404s, but instead should redirect to https://hero.handmade.network/forums/code-discussion

This should be safe to simply implement, as trailing slashes seem to be allowed nowhere on the site.

Edited by Matt Mascarenhas on Reason: Resolved
This is now fixed!