avoid NPE when text is modified
[vcs] Fix Move Changes To Another List from rollback and diff dialogs

* Add text, description and icon back to the constructor, so that
MultipleChangeListBrowser#MoveAction (which extends
MoveChangesToAnotherListAction) could reuse the data.
* Use existing instance in the other place where moveAction is needed.
* Define ChangesView.Move action id in IdeActions,
since it is already referenced from too many places.