### Godot version

4.0 beta (e1648b3327431a09cc9498663fac483275eb711d)

### System information

Mageia 9, Linux

### Issue description

When exporting a project with no attached script (or with only a builtin GDScript), the following error is printed:
```
ERROR: Can't open file from path 'res://.godot/global_script_class_cache.cfg'.
   at: get_file_as_bytes (core/io/file_access.cpp:699)
```

And while the export succeeds, when running the project, it prints:
```
ERROR: Couldn't find the given section "" and key "list", and no default was given.
   at: get_value (core/io/config_file.cpp:86)
```

We should ensure that this file is always created, regardless of whether there are scripts to parse for class names or not. It should always contain at least `list=[]`.

### Steps to reproduce

- Create new project
- Create main scene with no script
- Export

### Minimal reproduction project

[NewProj.zip](https://github.com/godotengine/godot/files/10547125/NewProj.zip)
if (!filesystem || scanning) {
		return nullptr;
	}
	EditorFileSystemDirectory *fs = nullptr;
	int cpos = -1;
	if (!_find_file(p_file, &fs, cpos)) {
		return nullptr;
	}
	if (r_index) {
		*r_index = cpos;
	}
	return fs;
}
EditorFileSystemDirectory *EditorFileSystem::get_filesystem_path(const String &p_path) {
	if (!filesystem || scanning) {
		return nullptr;
	}
	String f = ProjectSettings::get_singleton()->localize_path(p_path);
	if (!f.begins_with("res://")) {
		return nullptr;
	}
	f = f.substr(6, f.length());
	f = f.replace("\\", "/");
	if (f.is_empty()) {
		return filesystem;
	}
	if (f.ends_with("/")) {
		f = f.substr(0, f.length() - 1);
	}
	Vector<String> path = f.split("/");