feat(odin): add lemmy, reddit but better.

This is just a traefik port forwarding file, I'm running lemmy using the
original docker-compose I used before, just with podman and
podman-compose for the ability to just move the server without having to
recreate it.

modules/servers/thor/default.nix

@@ -5,5 +5,6 @@
     ./secrets.nix
     ./plausible.nix
     ./conduit.nix
+    ./lemmy.nix
   ];
 }