Update wlroots submodule
Forward to 790fc91e for nested session improvements: https://source.puri.sm/Librem5/wlroots/merge_requests/49 https://source.puri.sm/Librem5/wlroots/merge_requests/50
Forward to 790fc91e for nested session improvements: https://source.puri.sm/Librem5/wlroots/merge_requests/49 https://source.puri.sm/Librem5/wlroots/merge_requests/50