Battery percentage option not synchronized between desktop and lockscreen

[NathanBnm]

I think this option should be synchronized between the desktop and the lockscreen.

For now, when you activate the battery percentage in the desktop it doesn't appear on the lockscreen and you have to activate the option again there and vice versa.

[janxkoci]

This is probably an issue with greeter, because greeter technically acts as another user on the system..