Blender Git Loki

Fix #37047, Expanded Enum Alignment glitching.
The enum item buttons in the node header change their alignr when switching the tree type, due to different things being shown in the header (this rarely happens in other panels, so it doesn't turn
up easily). The new alignnr needs to be copied to existing block buttons in ui_but_update_from_old_block to ensure the enum items get aligned to each other.