Boost dropdown can be opened on non-boostable post

### Site

dev.phanpy.social

### Version

2024.11.24.1c87e64

### Instance

gts.woodland.cafe, mastodon.social

### Browser

- Firefox 132
- Ubuntu 24

### Bug description


### To reproduce

1. Open any followers-only post
2. click _next_ to the boost button, not _on_ it
3. observe, a dropdown even though the post cannot be boosted
4. click any of the options, they lead to errors in the network tab

### Expected behavior

this dropdown should not be visible

### Other

_No response_