get all global templates

{
  "globaltemplate": {
    "LinkedInstallation": {
      "installation": {
        "id": 0,
        "meta": {},
        "type": "string"
      }
    },
    "bannerURL": "string",
    "content": "string",
    "contentRevision": 0,
    "description": "string",
    "iconURL": "string",
    "id": 0,
    "isFullWidth": true,
    "name": "string",
    "state": "active"
  }
}