Examine source code of Cloud Clipboard

{
  "name": "Cloud Clipboard",
  "description": "A Simple Clipboard Storage on the Cloud",
  "version": "1.0.1",
  "manifest_version": 3,
  "browser_specific_settings": {
    "gecko": {
      "id": "cloudclipboard@jetthiggins",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo"
        ]
      }
    }
  },
  "action": {
    "default_popup": "index.html"
  },
  "host_permissions": [
    "https://api.cloudclipboard.app/*"
  ]
}