fix menu appearing on page load

Summary:
refs T772

Side effect of D351 as mentioned in #ushahidi - view changes caused by page refreshes were opening the Views subnav

Test Plan: Open/close the views subnav, try switching views normally, try refreshing the page with the menu open/closed.

Reviewers: rjmackay, shadowhand

Reviewed By: rjmackay, shadowhand

Maniphest Tasks: T772

Differential Revision: https://phabricator.ushahidi.com/D363