### 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
has_icon = true;
					}
				}
			}
			OS::get_singleton()->benchmark_end_measure("game_load");
		}
#ifdef TOOLS_ENABLED
		if (project_manager) {
			OS::get_singleton()->benchmark_begin_measure("project_manager");
			Engine::get_singleton()->set_editor_hint(true);
			ProjectManager *pmanager = memnew(ProjectManager);
			ProgressDialog *progress_dialog = memnew(ProgressDialog);
			pmanager->add_child(progress_dialog);
			sml->get_root()->add_child(pmanager);
			DisplayServer::get_singleton()->set_context(DisplayServer::CONTEXT_PROJECTMAN);
			OS::get_singleton()->benchmark_end_measure("project_manager");
		}
		if (project_manager || editor) {
			/
			Crypto::load_default_certificates(
					EditorSettings::get_singleton()->get_setting("network/tls/editor_tls_certificates").operator String());
		}
#endif
	}
	if (!has_icon && OS::get_singleton()->get_bundle_icon_path().is_empty()) {
		Ref<Image> icon = memnew(Image(app_icon_png));
		DisplayServer::get_singleton()->set_icon(icon);
	}
	OS::get_singleton()->set_main_loop(main_loop);
	if (movie_writer) {