This makes sure that we don't have cursors disappearing on Windows upon
scrolling because we can't find a cursor that exists on the system during
a scroll, and unlike GTK-3.x, we do not default to the arrow pointer on GTK4.
Just mimic what we have on X11 and Wayland: the trusty standard arrow pointer.
Fixes issue #3581.
{ "text", IDC_IBEAM },
{ "move", IDC_SIZEALL },
{ "not-allowed", IDC_NO },
+ { "all-scroll", IDC_ARROW },
{ "ew-resize", IDC_SIZEWE },
{ "e-resize", IDC_SIZEWE },
{ "w-resize", IDC_SIZEWE },