Remove needless section tag that breaks in mobile screens in News page

Author: yasulab

app/views/news/index.html.erb

@@ -10,7 +10,9 @@
     <h1 class='text-center'>
       📰🆕
       <br>
-      CoderDojo ニュース
+      CoderDojo
+      <br class='ignore-pc'>
+      ニュース
     </h1>
 
     <p class='text-center' style='padding-top: 30px;'>
@@ -55,9 +57,7 @@
   </section>
 </div>
 
-<section class="cover">
-  <%= lazy_image_tag '/coderdojo_object.webp', alt: 'CoderDojo Object', class: 'cover-wide' %>
-</section>
+<%= lazy_image_tag '/coderdojo_object.webp', alt: 'CoderDojo Object', class: 'cover-wide' %>
 
 <div class='container'>
   <section class="text-center list" style='margin-bottom: 100px;'>