[Bug] Kanban board bug (AKA picky magnifying bug)

### Bug Description

I don't even know what to call this bug, The Kanban board on one of my spaces is a picky bug, if the board isn't on "Done" and I hover my mouse on the page there is this bug (as shown in the image)

### How to Reproduce

1. Open a space
2. Open an existing board
3. Hover on the page where the board is especially if it's not on "Done"
4. And the bug is just like the screenshot except if it's on done

### Expected Behavior

Work normally

### Operating System

Ubuntu Budgie 22.04.4 LTS x86_64

### AppFlowy Version(s)

0.6.6

### Screenshots


**if board isn't on done :**


### Additional Context

_No response_