Bring focus back in timeline after closing post details

### Site

phanpy.social

### Version

2024.12.08.7e1ffc5

### Browser

- FF 133.0
- Fedora 40

### Bug description

Keyboard focusing in the timeline focuses on the first in-viewport post of timeline even after you opened and closed details of a specific post.

### To reproduce

1. Have timeline of 3 or more short posts
2. Focus on 2nd post using `j`/`k`
3. Press `Enter` to open post details
4. Press `Esc` to go back to timeline
5. Press `j` to focus on next post

### Expected behavior

It's expected that after closing details panel, 2nd post is in focus and pressing `j` will focuses on 3rd post. But it selects 1st post instead.