[BUG] Review system update issue

[acardona]

When deleting a node, the review widget will refresh the tables, without considering whether the revision was for the whole arbour or just for a subarbor. So one starts reviewing a subarbor, deletes a node, and the review tables change completely to include the whole arbour.

[acardona]

Also, closing the Review widget throws an error.

[acardona]

And once closed it can't be reopened again. The javascript console throws errors: "cannot read properties of undefined (reading 'EVENT_NODE_DELETED'), in the ReviewSystem.destroy() method.

[acardona]

Furthermore, upon deleting a skeleton treenode, the view is repositioned to the last node of the segment (the first to review). Frankly the view should not move at all, it gets in the way a lot.