message: Overwrite a global li margin-bottom.
diff: {#if menuItem.subMenu && isActiveSection}
  <ul class="submenu">
  {#each menuItem.subMenu as sub}
  - <li>
  + <li class="mb-0">
  <MenuLink href={sub.path}>{sub.title}</MenuLink>
  </li>
  {/each}
  