challenger: update to nixos 25.05. Update to nextcloud 31

hosts/challenger/services/komga.nix

@@ -1,16 +1,18 @@
 { config, lib, pkgs, ... }:
 let
   domain = "komga.home.feal.no";
-  cfg = config.services.komga;
+  port = 5001;
 in {
   services.komga = {
     enable = true;
     stateDir = "/tank/media/komga";
-    port = 5001;
+    settings.server = {
+      inherit port;
+    };
   };
 
   services.nginx.virtualHosts.${domain} = {
-    locations."/".proxyPass = "http://127.0.0.1:${toString cfg.port}";
+    locations."/".proxyPass = "http://127.0.0.1:${toString port}";
 
     extraConfig = ''
       client_max_body_size 512M;