act-user-manager: Find the user's graphical session instead of assuming we are in it
If we were started by systemd --user, we won't be in a login session. Find the user's graphical session by asking logind for it.
Closes: #42 (closed)
If we were started by systemd --user, we won't be in a login session. Find the user's graphical session by asking logind for it.
Closes: #42 (closed)