Add server password

services/terraria/windy_limbo_of_melancholy.nix

@@ -5,6 +5,7 @@
     messageOfTheDay = "The Problem Solvers strike again!";
     port = 7777;
     openFirewall = true;
+    password = "device-diameter3-famished";
     worldPath = /var/lib/terraria/Windy_Limbo_of_Melancholy.wld;
   };
 }