grafana: more things

1. Smoothed out power draw
- UPS only reports on 9 watt intervals, so smoothing it out gives more
relative detail on trends
2. Add jellyfin integration
- Good for seeing correlations between statistics and jellyfin streams
3. intel gpu stats
- Provides info on utilization of the gpu

configuration.nix

@@ -48,6 +48,7 @@
 
     ./services/ups.nix
     ./services/monitoring.nix
+    ./services/jellyfin-annotations.nix
 
     ./services/bitwarden.nix
     ./services/firefox-syncserver.nix