mealie: set the correct port in BASE_URL

Otherwise it would default to port 8080, which breaks generated links
when `cfg.port` is set to another port.

nixos/modules/services/web-apps/mealie.nix

@@ -59,6 +59,7 @@ in
         PRODUCTION = "true";
         ALEMBIC_CONFIG_FILE="${pkg}/config/alembic.ini";
         API_PORT = toString cfg.port;
+        BASE_URL = "http://localhost:${cfg.port}";
         DATA_DIR = "/var/lib/mealie";
         CRF_MODEL_PATH = "/var/lib/mealie/model.crfmodel";
       } // (builtins.mapAttrs (_: val: toString val) cfg.settings);