### Godot version

4.1 24cb43a

### System information

Windows 10 x64

### Issue description

Every time I launch Godot, I'm greeted with this in my console:
```
ERROR: Resource file not found: res://InputEventKey_7cuxk.
   at: (core\io\resource_loader.cpp:227)
```
Seems to be only happening in Project Manager and comes from this:
![](https://chat.godotengine.org/file-upload/udqZP8NQfogp4rjRL/Clipboard%20-%2021%20kwietnia%202023%2022:24)
It's part of my `editor_settings-4.tres`. I didn't test, but I think it applies to any shortcut that you customize. For some reason ResourceLoader tries to load it as a project resource, while it's a sub-resource.

Does not happen in 4.0.2.

### Steps to reproduce

1. Open Godot 4.1 project manager
2. Check the console

### Minimal reproduction project

N/A
Thread::make_main_thread();
	set_current_thread_safe_for_nodes(true);
	OS::get_singleton()->initialize();
	engine = memnew(Engine);
	register_core_types();
	register_core_driver_types();
	packed_data = memnew(PackedData);
	globals = memnew(ProjectSettings);
	register_core_settings(); 
	translation_server = memnew(TranslationServer);
	tsman = memnew(TextServerManager);
	if (tsman) {
		Ref<TextServerDummy> ts;
		ts.instantiate();
		tsman->add_interface(ts);
	}
	physics_server_3d_manager = memnew(PhysicsServer3DManager);
	physics_server_2d_manager = memnew(PhysicsServer2DManager);