x11-wm/hyprland: temporarily downgrade to 0.48.1

https://forums.freebsd.org/threads/wayland-hyprland-0-49-0-update-breaks-everything.97832/
forwarded to https://github.com/hyprwm/Hyprland/discussions/10437

This reverts commit b9577152f5a886abc335539f8abffd95e108289c.