Reverse mouse wheel in animation track editor

(cherry picked from commit f4c6bb568e053d60ff304f3af983ad5e0525be29)

editor/animation_track_editor.cpp

@@ -5071,14 +5071,12 @@ void AnimationTrackEditor::_scroll_input(const Ref<InputEvent> &p_event) {
 
 	Ref<InputEventMouseButton> mb = p_event;
 
-	if (mb.is_valid() && mb->is_pressed() && mb->get_command() && mb->get_button_index() == BUTTON_WHEEL_DOWN) {
-
+	if (mb.is_valid() && mb->is_pressed() && mb->get_command() && mb->get_button_index() == BUTTON_WHEEL_UP) {
 		timeline->get_zoom()->set_value(timeline->get_zoom()->get_value() * 1.05);
 		scroll->accept_event();
 	}
 
-	if (mb.is_valid() && mb->is_pressed() && mb->get_command() && mb->get_button_index() == BUTTON_WHEEL_UP) {
-
+	if (mb.is_valid() && mb->is_pressed() && mb->get_command() && mb->get_button_index() == BUTTON_WHEEL_DOWN) {
 		timeline->get_zoom()->set_value(timeline->get_zoom()->get_value() / 1.05);
 		scroll->accept_event();
 	}