BonFire does not contain WebMetadata

[oksanasalohubova]

Linked with Asses ZenPub replacement with BonFire #121

WebMetadata

We have no way to get WebMetadata in these requests and mutations

mutation shareLinkFetchWebMeta($url: String!) {
  fetchWebMetadata(url: $url){
    ...ShareLinkWebMeta
  }
}

fragment ShareLinkWebMeta on WebMetadata {
  image
  summary
  title
  url
}