Frame height should not be resized on initial click + drag in blank space

Issue type

UX/Interaction bug (incorrect behaviour)

Description with steps to reproduce

1. Add a frame (and deselect it)
2. Click and drag on any blank area within the frame
3. See that the frame resizes

If you first select the frame and then drag within the blank space, the frame does not resize—you can only resize using the drag handle at the bottom (which is expected)

This is particularly problematic when you've made frames invisible, because you'd assume that you're clicking on a blank spot do move the score around but you get this undesired interaction.

This also holds for formatting objects like staff spacer when hidden.

Supporting files, videos and screenshots

https://github.com/user-attachments/assets/0cf560df-0dc1-4321-8697-9a178b2ed938

In which versions of MuseScore Studio is this issue present?

4.6.4

Regression

I was unable to check

Operating system

windows 11

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