### 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
#ifdef TOOLS_ENABLED
		EditorNode *editor_node = nullptr;
		if (editor) {
			OS::get_singleton()->benchmark_begin_measure("editor");
			editor_node = memnew(EditorNode);
			sml->get_root()->add_child(editor_node);
			if (!_export_preset.is_empty()) {
				editor_node->export_preset(_export_preset, positional_arg, export_debug, export_pack_only);
				game_path = ""; /
			}
			OS::get_singleton()->benchmark_end_measure("editor");
		}
#endif
		sml->set_auto_accept_quit(GLOBAL_GET("application/config/auto_accept_quit"));
		sml->set_quit_on_go_back(GLOBAL_GET("application/config/quit_on_go_back"));
		if (!editor && !project_manager) {
			/
			String stretch_mode = GLOBAL_GET("display/window/stretch/mode");
			String stretch_aspect = GLOBAL_GET("display/window/stretch/aspect");
			Size2i stretch_size = Size2i(GLOBAL_GET("display/window/size/viewport_width"),
					GLOBAL_GET("display/window/size/viewport_height"));
			real_t stretch_scale = GLOBAL_GET("display/window/stretch/scale");
			Window::ContentScaleMode cs_sm = Window::CONTENT_SCALE_MODE_DISABLED;
			if (stretch_mode == "canvas_items") {
				cs_sm = Window::CONTENT_SCALE_MODE_CANVAS_ITEMS;
			} else if (stretch_mode == "viewport") {
				cs_sm = Window::CONTENT_SCALE_MODE_VIEWPORT;
			}
			Window::ContentScaleAspect cs_aspect = Window::CONTENT_SCALE_ASPECT_IGNORE;
			if (stretch_aspect == "keep") {