Use % when dropping unique scene nodes into script
Use % when dropping unique scene nodes into script

This expands uppon #60708, using `get_node("%NodeName")` for nodes that
have a unique scene name to avoid having to change the onready
statements when the paths of the nodes change.

(cherry picked from commit 1101f6c660feec732af14257f6f9fa26a17364e1)

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