message: fix(docs-infra): don't hide contributor links on devices that cannot hover
  Fixes
  PR Close
diff: @@ -66,7 +66,8 @@ aio-contributor {
  justify-content: center;
  align-items: center;
  text-align: center;
  - opacity: 0;
  + /* There is no point in hiding this if we can't hover to show it. */
  + @media (hover) { opacity: 0; }
  border-radius: 50%;
  [mat-button] {
  