Made authors page responsive

Author: justaskulkarni

themes/vocabulary_theme/templates/author.html

@@ -10,7 +10,7 @@
   <div class="header">
     <div class="container">
       <div class="columns">
-        <div class="column is-2">
+        <div class="column is-one-quarter-tablet-only is-2-desktop">
           <figure class="image profile">
             <img class="profile" src="https://secure.gravatar.com/avatar/{{ this.md5_hashed_email }}?size=200&d=mp" alt="gravatar">
           </figure>