night-light-page: Add a missing period
requested to merge automerisnaranja/gnome-control-center:period-night-light-unsupported-page into main
According to [1], the string "This could be the result of the graphics driver being used, or the desktop being used remotely" should end with a period. This wasn't addressed in [2], so add the period to fix this issue.
[1] #2020 (closed) [2] 909f0686