header.html.hbs

<div class="header-inner">
  <div id="logo">
    {{#link 'help_center'}}
      <img src="{{logo_url}}" alt="{{t 'logo'}}">  
    {{/link}}
  </div>
  {{#if alternative_locales}}
    <div class="dropdown language-selector" aria-haspopup="true">
      <a class="dropdown-toggle">
        {{current_locale.name}}
      </a>
      <span class="dropdown-menu dropdown-menu-end" role="menu">
        {{#each alternative_locales}}
          <a href="{{url}}" dir="{{direction}}" role="menuitem">
            {{name}}
          </a>
        {{/each}}
      </span>
    </div>
  {{/if}}
</div>