message: percy: fix missing navbar
diff: <nav class='navbar osf-project-navbar'>
  <div class='container'>
  <div class='navbar-header'>
  -
  <BsButton
  local-class='NodeNavbar__navbar-toggle'
  class='navbar-toggle collapsed'
  - @onClick={{action this.toggleNav}}
  + {{on 'click' this.toggleNav}}
  >
  <span class='sr-only'>{{t 'node_navbar.toggle'}}</span>
  <FaIcon @icon='bars' class='fa-lg' />
  </BsButton>
  -
  <span class='navbar-brand visible-xs visible-sm'>
  {{t 'node_navbar.project_nav'}}
  </span>
  </div>
  <BsCollapse
  @collapsed={{this.collapsedNav}}
  - @class='navbar-collapse'
  + class='navbar-collapse'
  >
  <ul data-test-node-navbar-links class='nav navbar-nav'>
  {{#if this.fakeParent}}
  