message: Stop using a spacer for image suggests. We do not have to do that since VS Code v1.52.
  See
diff: @@ -128,10 +128,7 @@ export class Completer implements vscode.CompletionItemProvider {
  if (rsc === undefined) {
  return item
  }
  -
  - // \u{2001} is a unicode character of space with width of one em.
  - const spacer = '\n\n\u{2001} \n\n\u{2001} \n\n\u{2001} \n\n\u{2001} \n\n\u{2001} \n\n\u{2001} \n\n'
  - const md = new vscode.MarkdownString(`![graphics](${rsc})` + spacer)
  + const md = new vscode.MarkdownString(`![graphics](${rsc})`)
  const ret = new vscode.CompletionItem(item.label, vscode.CompletionItemKind.File)
  ret.documentation = md
  return ret
  