update shikane service to properly wait for graphical session to come up

dot_config/systemd/user/shikane.service

@@ -1,11 +1,12 @@
 [Unit]
 Description=Shikane monitor manager
+PartOf=graphical-session.target
 After=graphical-session.target
 
 [Service]
 Type=simple
-ExecStart=/usr/bin/mise exec -- shikane
+ExecStart=/usr/bin/shikane
 
 [Install]
-WantedBy=default.target
+WantedBy=graphical-session.target