Add Keycloak to the enabled services list and update its configuration to include the HTTP host setting

hosts/server/toggles.nix

@@ -76,11 +76,11 @@ in
     "mealie"
     "metube"
     "atticd"
-    "keycloak"
   ]
   // enableList mkEnabledIp [
     "audiobookshelf"
     "vaultwarden"
     "readeck"
+    "keycloak"
   ];
 }

modules/servers/keycloak.nix

@@ -32,6 +32,7 @@ in
         hostname-strict-https = false;
         http-enabled = true;
         http-port = cfg.port;
+        http-host = cfg.ip;
         proxy-headers = "xforwarded";
       };
     };