* These changes allow the project to start and run in Godot 4.2
I hit some of the files with my formatter, if whitespace updates are not wanted I can remove those.
The project doesn't entirely work yet, but it runs. I am still working on making it work properly fully, but at least it starts now instead of crashing.
* Center text to match Godot 3 example better.
* Remove unnecessary use of `self`
* Connect to signals directly over `connect("name")`
* Use `call_deferred` on callables over `call_deferred("name"))`
* Emit signals directly over `emit_signal("name"...)`
