Wrong hover area for leftmost string of fretboard diagram

Issue type

UX/Interaction bug (incorrect behaviour)

Description with steps to reproduce

Markers can be entered by clicking in the area to the left of the fretboard diagram editor in Properties. This space should not be interactive.

Match the hover area to its size on the other strings.

(Reported by @scorster here: https://musescore.org/en/node/369433)

What is the latest version of MuseScore Studio where this issue is present?

Nightly

Regression

No.

Operating system

macOS 15.1

Additional context

No response

Checklist

• This report follows the guidelines for reporting bugs and issues
• I have verified that this issue has not been logged before, by searching the issue tracker for similar issues
• I have attached all requested files and information to this report
• I have attempted to identify the root problem as concisely as possible, and have used minimal reproducible examples where possible

Start by reproducing the issue in the fretboard diagram editor in Properties on macOS, focusing on the leftmost string and comparing its hover area with the other strings. Trace the editor's interaction handling and identify the relevant source and test locations. Done means the left-side space is not interactive and the leftmost string's hover area matches the others.