Centering the dynamics in Continuous view

Your idea

I propose to make it so that in the grand staff the dynamics can automatically center between the staves not only during pagination, but also during continuous viewing.

Problem to be solved

At the moment, in MuseScore Studio, the user can see the centering of dynamics between the staves only in paginated form. As soon as the user switches to a continuous view, the dynamic immediately loses the ability to automatically center between the staves. This can cause confusion for the user, who is comfortable composing/editing the score in continuous form, because even if the value "On" is set in the Properties for "Center between staves", the dynamics will still not be centered, and the user will get confused and think that the dynamics is assigned only to the stave, and not the grand staff.

https://github.com/user-attachments/assets/0f5250f1-9a33-4f42-a284-1da23c2b6e7c

Prior art

No response

Additional context

No response

Checklist

• This request follows the guidelines for reporting issues
• I have verified that this feature request has not been logged before, by searching the issue tracker for similar requests

Start by reproducing the grand-staff dynamics behavior in MuseScore Studio in both paginated and continuous views, with “Center between staves” set to “On.” Compare the layout behavior between the two views. Done means dynamics remain automatically centered between the staves while editing in continuous view, without changing the existing paginated behavior.