Login button hidden on tablet

[everettsp]

Login button appears briefly on mobile then disappears. Can't login to shiny partner.

[gdelaplante]

This is due to screen size/resolution controlling what appears/disappears. I did this to avoid having the login button above the 'hamburger' menu on small screens, and because the admin side of the app is not tested on mobile (and performs poorly on small screens). However, a tablet should be large enough! I can make the login button show up at smaller resolutions.