docs: include HyprlandToplevel in module file

Author: outfoxxed

src/wayland/hyprland/module.md

@@ -4,6 +4,7 @@ headers = [
 	"ipc/connection.hpp",
 	"ipc/monitor.hpp",
 	"ipc/workspace.hpp",
+	"ipc/hyprland_toplevel.hpp",
 	"ipc/qml.hpp",
 	"focus_grab/qml.hpp",
 	"global_shortcuts/qml.hpp",