Fix inline renaming multiple files when renaming changes sorting order

Fix inline renaming multiple files when renaming changes sorting order

Suppose we are renaming file i and the new name will be sorted after
file i+1. We are now pressing ArrowDown to immediately start renaming
file i+1. However, because of the sorting we would not actually end up
renaming what used to be file i+1. What would happen is that editing
would be started in dolphinview.cpp:2065. However, after 100 ms the
timer in KFileItemModel would fire, resulting in the model emitting
itemsMoved(). This would trigger doLayout() in
KItemListView::slotItemsMoved(). doLayout() resizes the
KItemListWidgets, wich causes the renaming to be canceled in
KStandardItemListWidget::resizeEvent().

Now, we start a new renaming operation for the correct widget after the
relayouting is complete.