Thin lines between code lines in multi file diff editor

[Igorgro]

Does this issue occur when all extensions are disabled?: Yes

Testing #199155

When scrolling multi file diff editor in Google Chrome sometimes a thin grey lines appear between lines of code. If you then trigger a hint (by hovering variable, field or function), then the line will become black. This can be probably caused by using 125% scale on X.org Nvidia, but I cannot reproduce this on regular diff editor.

• VS Code Version: 1.85.0 Insiders
• OS Version: Arch Linux
• Browser: Google Chrome 119.0.6045.159

Steps to Reproduce:

1. Download latest insiders version
2. Start it as server and open in Google Chrome
3. Open multi file diff editor
4. See thin grey lines between code lines.

Screenshot: