Menu cleanup

[omnilord]

I've created a PR for this to start a small discussion about cleaning up the Navbar a bit since with adding the Archived lists for Shelters and PODs really made it look fairly unwieldy on a desktop.

This PR adds 'menu' partials to each resource type page (Shelters, PODs, Needs) that sits under the navbar. It needs to be groomed for UI/UX and Styling, but it should be functional otherwise.

[nihonjinrxs]

I think it's important to note that the large majority of these menu items are only visible to admins.

That said, I think it would likely be better to have dropdowns for the more advanced features, so that, for example, for shelters, you'd have something like:

• Shelters -> /shelters
  • Outdated Shelter Records -> /shelters/outdated
  • Archived Shelter Records -> /shelters/archived
  • Download as CSV -> /shelters.csv

We'd likely also want to have the ability to have calls to action in the top-level menu and highlighted. For example, with the new "Make one call" feature we're discussing in #15 we'd likely want "Help Call Shelters" as a highlighted call to action in the top-level menu.

In any case, more discussion on this is definitely a good idea before moving forward.

[omnilord]

I popped the commit out for the in-page links and rolled up a dropdown POC and it looks to work well in Chrome, Safari, and Firefox. I don't have access to Edge or IE at the moment. Not sure how to make this look nice and responsive on mobile devices, however, since we don't have something like Bootstrap included.

[nihonjinrxs]

This looks pretty good as is. @omnilord can you verify that it covers all the stuff that's happened since last month? If so, ready to merge.

[omnilord]

Everything should be up to date. I've been keeping it up to head so it was ready to merge when someone had a chance to re-review it.