Increase culling mode zoom limit to facilitate easier culling on modern systems

[CritLoren]

Is your feature request related to a problem? Please describe.
Coming from Capture One, where I've developed an easy way to cull photos by comparing all of them (up to 12 at a time), deselecting the sharpest image, and flagging the rest for deletion, i've struggled to replicate it in Darktable. I can compare images (albeit a bit slower to select) but I cannot pixel peep as easily, seeing as zooming is forcefully disabled over 4 images.

Describe the solution you'd like
Increasing the limit for the culling mode zoom.

Alternatives
Currently I'm importing my photos through Capture one, then switching back to my linux install, it works, but i'd rather I didn't have to. If there's something I've missed, let me know

Additional context
This is how easy it is for me to compare for culling on capture one:
https://github.com/user-attachments/assets/944c0bf6-9fa2-4a90-855f-386f18914550

[github-actions]

This issue has been marked as stale due to inactivity for the last 60 days. It will be automatically closed in 300 days if no update occurs. Please check if the master branch has fixed it and report again or close the issue.

[CritLoren]

Not this bot here too...