Mouse scroll doesn't work in "encoding" and "open file" menus when file is open

Mouse scolling doesn't work in "Encoding" and "Open file" menus when file is open.
It looks like bug was introduced with commit [https://github.com/microsoft/edit/pull/603](url)

I fix latest main code with  bellow patch and it started to work.

[scroll.patch](https://github.com/user-attachments/files/24195286/scroll.patch)

