Unlike translating existing nodes [which disables cursor wrapping and enables edge-panning instead since rBSa1cc7042a74], adding new nodes would still show the old behavior of cursor wrapping. This has been disabled for the case when the node whould be added outside (due to menus overlapping other editors). Now enable edge-panning for adding new nodes as well and make sure this only starts once the mouse has returned into the inside rect once. Maniphest Tasks: T92427 Differential Revision: https://developer.blender.org/D13005