Userland: Add horizontal mouse scroll support

Author: https://github.com/can3p
Commit: 1662213737
Pull-request: https://github.com/SerenityOS/serenity/pull/11246
Reviewed-by: https://github.com/kleinesfilmroellchen ✅

Userland/DevTools/Profiler/TimelineView.cpp

@@ -67,7 +67,7 @@ void TimelineView::mousewheel_event(GUI::MouseEvent& event)
 {
     if (event.modifiers() == Mod_Ctrl) {
         event.accept();
-        m_scale += event.wheel_delta();
+        m_scale += event.wheel_delta_y();
         m_scale = clamp(m_scale, 1.0f, 100.0f);
         for_each_child_of_type<TimelineTrack>([&](auto& track) {
             track.set_scale(m_scale);