Añadidos settings de cookies y privacidad

package-lock.json

@@ -53,6 +53,7 @@
         "express": "^4.18.2",
         "express-rate-limit": "^8.5.2",
         "express-session": "^1.17.3",
+        "helmet": "^8.1.0",
         "multer": "^2.2.0",
         "nodemailer": "^6.10.1",
         "pg": "^8.13.0",
@@ -17756,6 +17757,17 @@
         "node": ">= 0.4"
       }
     },
+    "node_modules/helmet": {
+      "version": "8.3.0",
+      "resolved": "https://registry.npmjs.org/helmet/-/helmet-8.3.0.tgz",
+      "integrity": "sha512-Qgpiaws3Sm30Av8Eah6sjMCZZwjlBu+E68rhpCWBshY1lb09HtLwj5GviX0OyQIn+ulUS0iX0AxN5n3tLZzz1w==",
+      "engines": {
+        "node": ">=18.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/EvanHahn"
+      }
+    },
     "node_modules/hermes-compiler": {
       "version": "250829098.0.14",
       "resolved": "https://registry.npmjs.org/hermes-compiler/-/hermes-compiler-250829098.0.14.tgz",