### Godot version

v4.0.beta15.mono.official [4fa6edc88]

### System information

Linux, Xorg

### Issue description

The entire window loses focus if you ungrab focus from a Control. 
This doesn't seem to happen in Beta 14 and older betas.

### Steps to reproduce

1. Create a Control that can grab focus (tested with LineEdit and TextEdit)
2. Grab focus
3. Release focus via release_focus() or hiding the node

### Minimal reproduction project

[FocusMinimal.zip](https://github.com/godotengine/godot/files/10498175/FocusMinimal.zip)

if (screen_is_kept_on() == p_enable) {
		return;
	}
	if (p_enable) {
		screensaver->inhibit();
	} else {
		screensaver->uninhibit();
	}
	keep_screen_on = p_enable;
}
bool DisplayServerX11::screen_is_kept_on() const {
	return keep_screen_on;
}
#endif
Vector<DisplayServer::WindowID> DisplayServerX11::get_window_list() const {