applets/kicker: fix runner list keyboard navigation

Amends b725d1dde8

An else block was erroneously deleted. Main menu navigation is not
affected, but moving columns right from within the runner columns
(not search field) does not.

Instead, handle this case properly.


(cherry picked from commit f3822d8e8c)

Co-authored-by: Christoph Wolk <cwo.kde@posteo.net>

applets/kicker/ItemListView.qml

@@ -230,6 +230,8 @@ PlasmaComponents3.ScrollView {
                 if (listView.currentItem !== null && (listView.currentItem as ItemListDelegate).hasChildren) {
                     openOrFocusSubmenu()
                     itemList.childDialog.mainItem.currentIndex = 0;
+                } else {
+                    itemList.navigateRightRequested();
                 }
             }
         }