Remove height on .co-ns-selector to fix bg color bug on catalog at mo…

[rhamilto]

…bile

Before:

After:

Note: changes in #603 still result in the namespace picker bar fading on on some route changes. I gather this is a bandaid to minimize the fact the picker is loading after the rest of the page, but the late load of the picker seems undesirable. http://recordit.co/NBO3QtOZcf

[spadgett]

I think we should just disable the animation for now. It's a little jarring for it to pop in on initial page load, but it's fine switching between nav items. I'm not sure the fade-in on every route change is really better.

[rhamilto]

In testing this further, it's not clear why it's even necessary to hide and then show the picker. @alecmerdler, can you clarify why it was added?

cc: @sg00dwin

[spadgett]

@rhamilto I believe it needs to wait for API discovery to complete before we can show the picker. We're keying on whether there's a Project resource.

[spadgett]

We should be able to avoid any flicker when switching routes, however.

[rhamilto]

Closing in favor of #639