List groups (columns) for a view

curl --request GET \
  --url https://api.useinvent.com/orgs/{org_id}/views/{view_id}/groups \
  --header 'Authorization: Bearer <token>'

{
  "groups": [
    {
      "key": "<string>"
    }
  ],
  "capabilities": {
    "reorderable_columns": true,
    "movable_items": true,
    "axis": {
      "key": "<string>",
      "readonly": true,
      "sortable": true,
      "groupable_in": [],
      "label": "<string>",
      "items": [
        {
          "value": "<string>",
          "label": "<string>",
          "description": "<string>",
          "icon_url": "<string>",
          "metadata": {
            "link": "<string>",
            "data": "<unknown>"
          }
        }
      ]
    }
  }
}