LibGUI: Fix a typo

Author: https://github.com/cammo1123
Commit: 4e3b965d7f
Pull-request: https://github.com/SerenityOS/serenity/pull/16321
Reviewed-by: https://github.com/nico ✅

Userland/Libraries/LibGUI/ScrollableContainerWidget.cpp

@@ -73,7 +73,7 @@ void ScrollableContainerWidget::resize_event(GUI::ResizeEvent& event)
     update_widget_position();
 }
 
-void ScrollableContainerWidget::layout_relevant_change_occured()
+void ScrollableContainerWidget::layout_relevant_change_occurred()
 {
     update_widget_min_size();
     update_scrollbar_visibility();