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/Applications/PixelPaint/ImageEditor.cpp

@@ -257,7 +257,8 @@ GUI::MouseEvent ImageEditor::event_with_pan_and_scale_applied(GUI::MouseEvent co
         event.buttons(),
         event.button(),
         event.modifiers(),
-        event.wheel_delta()
+        event.wheel_delta_x(),
+        event.wheel_delta_y(),
     };
 }
 
@@ -271,7 +272,8 @@ GUI::MouseEvent ImageEditor::event_adjusted_for_layer(GUI::MouseEvent const& eve
         event.buttons(),
         event.button(),
         event.modifiers(),
-        event.wheel_delta()
+        event.wheel_delta_x(),
+        event.wheel_delta_y(),
     };
 }