Bug: close button for expanded note obscures text

Created by: Amelia

💡 Summary

if you try to expand a note that's a reply to the currently viewed note, the close button will be in front of the text, obscuring it. this only seems to happen in mobile UI though (you can recreate it on desktop by squishing the window to be thinner)

🥰 Expected Behavior

the close button should be beneath the text, not obscuring it

🤬 Actual Behavior

The close button obscures the text

📝 Steps to Reproduce

1. Create or view a note tall enough to need to be expanded that is a reply to another note
2. when viewing the parent note, expand the child note
3. The text should be obscured by the close button, as shown in the above image

💻 Frontend Environment

* Model and OS of the device(s): GrapheneOS, Fedora
* Browser: Firefox 
* Server URL: ambrosia.moe
* Misskey:

🛰 Backend Environment (for server admin)

* Installation Method or Hosting Service: baremetal
* Misskey: commit 19fc5a7
* Node: v19.9.0
* PostgreSQL: docker
* Redis: docker
* OS and Architecture: Debian 11 x86_64

Created by: Amelia

oh this also happens when expanding a parent post as well