fix(header): Update header layout with grid classes for better responsiveness

Author: fmontes

examples/dotcms-symfony/templates/dotcms/header.twig

@@ -1,10 +1,10 @@
 <header class="container">
     <div class="grid">
-        <div>
+        <div class="col-start-1 col-end-4">
             <h1><a href="/" style="text-decoration:none; color:inherit;">TravelLux in Symfony</a></h1>
             {# or page title via {{ pageAsset.page.title }} #}
         </div>
-        <div>
+        <div class="col-start-5 col-end-12" style="justify-self: end;">
             {% include 'dotcms/components/navigation.twig' with { 'navigation': navigation } %}
         </div>
     </div>