feat(templates): Tweak _hero.html

This makes the title fit on one line

src/shared/templates/_hero.html

@@ -3,8 +3,8 @@
 <section class="hero is-dark is-primary">
   <div class="hero-body">
     <div class="container">
-      <div class="grid">
-        <div class="cell">
+      <div class="grid has-3-cols">
+        <div class="cell is-col-span-2">
           <h1 class="title">
             <a href="{% url 'index' %}" class="has-text-dark">Dossier Général des Services Informagiques</a>
           </h1>