### 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
OS::get_singleton()->set_current_rendering_driver_name(rendering_driver);
	OS::get_singleton()->set_current_rendering_method(rendering_method);
	
	rendering_driver = rendering_driver.to_lower();
	if (use_custom_res) {
		if (!force_res) {
			window_size.width = GLOBAL_GET("display/window/size/viewport_width");
			window_size.height = GLOBAL_GET("display/window/size/viewport_height");
			if (globals->has_setting("display/window/size/window_width_override") &&
					globals->has_setting("display/window/size/window_height_override")) {
				int desired_width = globals->get("display/window/size/window_width_override");
				if (desired_width > 0) {
					window_size.width = desired_width;
				}
				int desired_height = globals->get("display/window/size/window_height_override");
				if (desired_height > 0) {
					window_size.height = desired_height;
				}
			}
		}
		if (!bool(GLOBAL_GET("display/window/size/resizable"))) {
			window_flags |= DisplayServer::WINDOW_FLAG_RESIZE_DISABLED_BIT;
		}
		if (bool(GLOBAL_GET("display/window/size/borderless"))) {
			window_flags |= DisplayServer::WINDOW_FLAG_BORDERLESS_BIT;
		}
		if (bool(GLOBAL_GET("display/window/size/always_on_top"))) {
			window_flags |= DisplayServer::WINDOW_FLAG_ALWAYS_ON_TOP_BIT;