Horizontal and vertical lines - - Visual artifacts

**Describe the bug**
When using the dark mode, after the list is loaded (longer than the viewpoint) and you scroll down, a horizontal line appears.
It's like a 1px bottom border of the current viewpoint's height

**Version**
I've notices this since 0.60.3 onwards

**How did you install?**
Docker image on Synology NAS

**To Reproduce**

Steps to reproduce the behavior:
1. load the page
2. Scroll down a bit and observe the bottom part of the screen
3. See line

**Expected behavior**
No line artefact.

**Desktop (please complete the following information):**
- OS: MS Windows 10 Pro
- Browser Google chrome
- Version 153.0.8010.37

**Additional context**
There are also other lines, that I find a bit distracting as it does not match the theme.