### 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
register_editor_types();
	initialize_modules(MODULE_INITIALIZATION_LEVEL_EDITOR);
	GDExtensionManager::get_singleton()->initialize_extensions(GDExtension::INITIALIZATION_LEVEL_EDITOR);
	ClassDB::set_current_api(ClassDB::API_CORE);
#endif
	MAIN_PRINT("Main: Load Modules");
	register_platform_apis();
	
	/
	initialize_theme_db();
	register_scene_singletons();
	GLOBAL_DEF_BASIC(PropertyInfo(Variant::STRING, "display/mouse_cursor/custom_image", PROPERTY_HINT_FILE, "*.png,*.webp"), String());
	GLOBAL_DEF_BASIC("display/mouse_cursor/custom_image_hotspot", Vector2());
	GLOBAL_DEF_BASIC("display/mouse_cursor/tooltip_position_offset", Point2(10, 10));
	if (String(GLOBAL_GET("display/mouse_cursor/custom_image")) != String()) {
		Ref<Texture2D> cursor = ResourceLoader::load(
				GLOBAL_GET("display/mouse_cursor/custom_image"));
		if (cursor.is_valid()) {
			Vector2 hotspot = GLOBAL_GET("display/mouse_cursor/custom_image_hotspot");
			Input::get_singleton()->set_custom_mouse_cursor(cursor, Input::CURSOR_ARROW, hotspot);
		}
	}
	camera_server = CameraServer::create();
	MAIN_PRINT("Main: Load Physics");
	initialize_physics();
	initialize_navigation_server();
	register_server_singletons();
	/
	ScriptServer::init_languages();
	theme_db->initialize_theme();