Can't continue selecting text via click & drag when mouse is outside of text box

Issue type

UX/Interaction bug (incorrect behaviour)

Description with steps to reproduce

1. Add some text to a frame
2. Enter edit mode
3. Click and drag to select some of the text, keeping the mouse in the text box
4. Then, continue the drag with the mouse outside of the box
5. See that it doesn't keep selecting the text in the direction you drag the mouse

You should be able to select text regardless of whether the mouse is positioned over the box or not

Supporting files, videos and screenshots

https://github.com/user-attachments/assets/b4cc6886-8beb-4e56-bbe4-dc53ceecf558

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

Nightly

Regression

No.

Operating system

macOS 15

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

No source files or tests are named. Reproduce the issue while editing text in a frame, then trace the text-selection mouse-drag entry point and its handling when the pointer leaves the text box. Done means dragging beyond the box continues extending the selection in the pointer's direction, with coverage for the reported interaction.