message: Drop detail in citation intellisense
  The documentation field of the completionItem is a copy of detail but
  rendered in markdown. To avoid duplication, we drop the detail field.
diff: @@ -43,6 +43,7 @@ export class Citation {
  item.filterText = `${item.key} ${item.fields.author} ${item.fields.title} ${item.fields.journal}`
  item.insertText = item.key
  item.documentation = new vscode.MarkdownString(item.detail.replace(/\n/g, ' \n'))
  + item.detail = ''
  if (args) {
  item.range = args.document.getWordRangeAtPosition(args.position, /[-a-zA-Z0-9_:.]+/)
  }
  