vfolder GQL resolver is outdated

[jopemachine]

When using vfolder GQL in the main branch, the following error occurs:

{
  "data": {
    "vfolder": null
  },
  "errors": [
    {
      "message": "VirtualFolder.batch_load_by_id() got an unexpected keyword argument 'user_uuid'",
      "locations": [
        {
          "line": 2,
          "column": 5
        }
      ],
      "path": [
        "vfolder"
      ]
    }
  ]
}

This PR resolves several issues causing the VFolder GQL to malfunction in the current main branch.

Request example

query ComputeContainer {
    vfolder (id: "VFOLDER_ID") {
        name
    }
}