### 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
#endif 
#endif 
	if (script.is_empty() && game_path.is_empty() && String(GLOBAL_GET("application/run/main_scene")) != "") {
		game_path = GLOBAL_GET("application/run/main_scene");
	}
#ifdef TOOLS_ENABLED
	if (!editor && !project_manager && !cmdline_tool && script.is_empty() && game_path.is_empty()) {
		/
		/
		/
		/
		OS::get_singleton()->alert("Couldn't detect whether to run the editor, the project manager or a specific project. Aborting.");
		ERR_FAIL_V_MSG(false, "Couldn't detect whether to run the editor, the project manager or a specific project. Aborting.");
	}
#endif
	MainLoop *main_loop = nullptr;
	if (editor) {
		main_loop = memnew(SceneTree);
	}
	String main_loop_type = GLOBAL_GET("application/run/main_loop_type");
	if (!script.is_empty()) {
		Ref<Script> script_res = ResourceLoader::load(script);
		ERR_FAIL_COND_V_MSG(script_res.is_null(), false, "Can't load script: " + script);
		if (check_only) {
			if (!script_res->is_valid()) {
				OS::get_singleton()->set_exit_code(EXIT_FAILURE);
			} else {
				OS::get_singleton()->set_exit_code(EXIT_SUCCESS);
			}
			return false;