Hide the search loader using external CSS

(cherry picked from commit 6adf8e4b)

aleksis/core/static/style.scss

@@ -195,6 +195,7 @@ a.collection-item.search-item {
 
 div#search-loader {
   margin: 0.5rem 0 0 0;
+  display: none;
 }
 
 div#search-results {

aleksis/core/templates/core/base.html

@@ -84,7 +84,7 @@
             <button class="btn btn-flat search-button" type="submit" aria-label="{% trans "Search" %}">
               <i class="material-icons">search</i>
             </button>
-            <div class="progress" style="display: none;" id="search-loader"><div class="indeterminate"></div></div>
+            <div class="progress" id="search-loader"><div class="indeterminate"></div></div>
           </div>
         </form>
       </li>