linux: Lines are sometimes rendered too wide

[mrnugget]

Check for existing issues

• Completed

Describe the bug / provide steps to reproduce it

This became apparent with indent guides, but it's also other lines.

See:

Screencast.from.2024-06-03.11-51-32.webm

Environment

Zed: v0.139.0 (Zed Nightly b218d87)
OS: Linux 1.0.0
Memory: 62.7 GiB
Architecture: x86_64

GNOME/X11

If applicable, add mockups / screenshots to help explain present your vision of the feature

No response

If applicable, attach your ~/Library/Logs/Zed/Zed.log file to this issue.

No response

[mikayla-maki]

Given that I've never seen a similar issue on macOS, this is probably an issue with the blade renderer.

CC: @kvark / @jansol, if y'all are looking for something to work on :)

[kvark]

I can't repro it on my machine, at least not trivially.
I suspect it's just the same problem with handing the fractional scaling, see #12352 (comment)