Game, scrollbars and mouse wheel

[LeHerosInconnu]

Preliminary checks

• I've checked that there aren't other open issues on the same topic.

Describe the problem requiring a solution

If the mouse cursor is positioned over the areas of the scrollbar arrows, the action of the mouse wheel is not taken into account.

I also suggest taking into account mouse wheel actions regardless of the position of the mouse cursor on the screen when only one scrollbar is present.

In fheroes2:

2025-01-11.13-47-44.mp4

Describe the possible solution

Make mouse wheel actions taken into account when the mouse cursor is positioned over scrollbar arrow zones.
When there is only one scrollbar on the screen, ensure that mouse wheel actions are taken into account regardless of the position of the mouse cursor on the screen.

Additional info

No response