refactor: store port as integer

modules/nixos/features/prowlarr.nix

@@ -1,26 +1,21 @@
-{
-  lib,
-  ...
-}:
 let
-  port = "5009";
+  port = 5009;
 in
 {
   services = {
     prowlarr = {
       enable = true;
       dataDir = "/srv/prowlarr";
-      settings.server.port = lib.toInt port;
+      settings.server = {
+        inherit port;
+      };
     };
 
     nginx = {
       virtualHosts."prowlarr.fi33.buzz" = {
         forceSSL = true;
         useACMEHost = "fi33.buzz";
-        locations."/" = {
-          proxyPass = "http://localhost:${port}";
-          # proxyWebsockets = true;
-        };
+        locations."/".proxyPass = "http://localhost:${toString port}";
       };
     };
   };