Update logo size

Author: Dhruvi16

themes/vocabulary_theme/templates/layout.html

@@ -51,10 +51,10 @@
       <div class="navbar-brand">
         <a class="has-text-black" href="{{ '/'|url }}">
           <svg
-            class="logo margin-top-big"
+            class="logo"
             xmlns="http://www.w3.org/2000/svg"
             preserveAspectRatio="xMidYMid meet"
-            viewBox="0 0 304 73">
+            viewBox="0 0 384 46">
             <use href="#opensource"></use>
           </svg>
         </a>