### Godot version

v4.1.rc3.official [cdd2313ba]

### System information

Godot v4.1.rc3 - KDE neon 5.27 22.04 - Vulkan (Forward+) - integrated AMD Radeon Vega 11 Graphics (RADV RAVEN) () - AMD Ryzen 5 3400G with Radeon Vega Graphics (8 Threads)

### Issue description

Trying to open the folder containing a project from the Project Manager, by clicking the small folder icon beneath the project's name, opens its parent folder in the file manager instead.

Likewise, trying to open the project's data folder from the game editor shows me its parent folder, either the one containing the data folders of all other Godot projects, or even my `~/.local/share` if I set a custom data folder in the project settings.

Using the shortcut menu to open any folder in the File System dock works as intended.

### Steps to reproduce

- In the Project Manager projects list, click the folder icon under the project name;
- Inside the game editor, use the `Project → Open User Data Folder` menu.

### Minimal reproduction project

N/A
return ".";
}
String OS::get_bundle_resource_dir() const {
	return ".";
}
String OS::get_bundle_icon_path() const {
	return String();
}
String OS::get_user_data_dir() const {
	return ".";
}
String OS::get_resource_dir() const {
	return ProjectSettings::get_singleton()->get_resource_path();
}
String OS::get_system_dir(SystemDir p_dir, bool p_shared_storage) const {
	return ".";
}
Error OS::shell_open(String p_uri) {
	return ERR_UNAVAILABLE;
}
Error OS::shell_show_in_file_manager(String p_path, bool p_open_folder) {
	if (!p_path.begins_with("file://")) {
		p_path = String("file://") + p_path;
	}
	if (!p_path.ends_with("/")) {
		p_path = p_path.get_base_dir();
	}
	return shell_open(p_path);
}
uint64_t OS::get_static_memory_usage() const {