Tweaks for vault api integration

[dpaez]

We can start using the modules endpoint and start adjusting the response parse on our end. We are currently expecting the following params:

   "params": {
    "keys": {
      "type": "array",
      "items": {
        "type": "object",
        "props": {
          "url": {
            "type": "string"
          },
          "title": {
            "type": "string",
            "empty": "false"
          },
          "id": {
            "type": "number"
          },
          "created_at": {
            "type": "string"
          }
        }
      }
    }

We can relax those as just expect an url. Everything else will be optional for now.