Fix hardcoded Maya style navigation pan key modifier
Fix hardcoded Maya style navigation pan key modifier

ALT key modifier was hardcoded is node_3d_editor_plugin.cpp and didn't take editor settings into account.

Fix #46973

(cherry picked from commit 31077d875ea9f778d960d9bdfbc6affbab54081a)

ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot