ui: update nav logo renderer

packages/ui-default/templates/partials/header_mobile.html

@@ -1,7 +1,9 @@
 <div class="header--mobile">
   <div class="row"><div class="columns clearfix">
     <div class="float-left">
-      <a class="header--mobile__domain" href="/" target="_self">&nbsp;</a>
+      <a class="header--mobile__domain" href="/" target="_self">
+        <img src="{{ UiContext.domain.nav_logo_dark or UiContext.nav_logo_dark }}">
+      </a>
     </div>
     <div class="float-right">
       {% include "partials/hamburger.html" %}

packages/ui-default/templates/partials/nav.html

@@ -9,7 +9,9 @@
 <nav class="nav slideout-menu" id="menu">
   <div class="row"><div class="columns clearfix">
     <ol class="nav__list nav__list--main clearfix">
-      <li class="nav__list-item"><a href="/" class="nav__logo" style="background-size: 100% 100%;">&nbsp;</a></li>
+      <li class="nav__list-item">
+        <a href="/"><img class="nav__logo" src="{{ UiContext.domain.nav_logo_dark or UiContext.nav_logo_dark }}"></a>
+      </li>
       {%- for item in overrideNav|default(ui.getNodes('Nav')) -%}{% if item.checker(handler) %}
         {{ nav_item(item) }}
       {% endif %}{%- endfor -%}