Next/previous post keyboard navigation broken by filtered comments

### Site

phanpy.social

### Version

2024.12.28.119d4b0

### Instance

social.linux.pizza

### Browser

Firefox 133.0.3 on linux with flatpak

### Bug description

I hid some fairly pupolar keywords today. And then noticed keyboard navigation with `j`/`k` gets stuck at some posts. Looking at the html source, the next comment is hidden. Well I couldn't quickly spot why/how it was hidden, but it's shown as grey so I assume that's it. Neither did I find any good way to copy-paste parts of the inspector html. I expect the screenshot plus the simplicity to reproduce this should be enough, but obviously if you want more info I am happy to provide it - please let me know what/how.

On this screenshot you see the grey list/comment entry in the middle. I get stuck navigating with keys j/k both from below or above it.


### To reproduce

1. Add mastodon keyword filters fully hiding comments (that have an effect on some timeline of yours).
2. Go to that timeline, keep navigating down with keyboard shortcut `j`.
3. You'll get stuck eventually, as in pressing `j` has no effect, the selected/active comment doesn't move down anymore.
4. Check browser console to inspect html and you'll hopefully find a comment that was filtered as the next entry.

### Expected behavior

I can continue navigating, hidden comments are simply skipped.

### Other

I searched for existing issues but didn't find any. There are a lot of issues though, so I am not that confident that I missed it, I hope not.