message: fix(aio): remove gap between sidenav menus
  Fixes
diff: aio-nav-menu {
  display: block;
  - padding: 16px 0 0;
  margin: 0 auto;
  font-size: 13px;
  ul, a {
  @@ -18,6 +17,10 @@ aio-nav-menu {
  margin: 0;
  }
  + &:first-child {
  + margin-top: 16px;
  + }
  +
  aio-nav-item div a {
  padding-left: 16px;
  }
  