tautulli: restore ContainerName=tautulli (line churn ate it)

Without ContainerName= the v1 generator names the container
systemd-tautulli; the fleet references containers by their plain names
(podman inspect/exec, deployer health checks). Container was healthy but
renamed — caught by post-cutover verification, not by the seam; the seam
only asserts file keys, so pin the name here and keep plex/tautulli
structures parallel.

dankserver/tautulli/quadlet/tautulli.container

@@ -5,6 +5,7 @@ Wants=network-online.target
 
 [Container]
 Image=lscr.io/linuxserver/tautulli:v2.18.1-ls242
+ContainerName=tautulli
 Network=dankserver_appnet:alias=tautulli
 Environment=PUID=0
 Environment=PGID=0