Cursor pointer missing on navigation links without a hover menu

[alexgibson]

If a navigation menu item does not have a mzp-has-drop-down or mzp-js-expandable class, then it acts like a regular link e.g.

<li class="mzp-c-menu-category">
  <a class="mzp-c-menu-title" href="https://www.mozilla.org/firefox/">Firefox</a>
</li>

Whilst this works as intended, hovering over the link will not show the regular pointer cursor:

This seems to be the offending line https://github.com/mozilla/protocol/blob/master/src/assets/sass/protocol/components/_menu.scss#L100

[stephaniehobson]

Fixed in #308