Allow scroll when navbar content exceeds height of screen
Allow scroll when navbar content exceeds height of screen

The navbar currently hides all content that overflows the space. This
means that some icons do not display for admin users, and users at
various zooms. This is a short-term solution; ideally I'd like the
navigation bar to resize appropriately-- but this is a simpler fix for
now.

Change-Id: Iea1cc310baa75308d1063adcd0814cb99b5f13f7

ColdrickSotK/storyboard-webclient,ColdrickSotK/storyboard-webclient,ColdrickSotK/storyboard-webclient