replace icon on dashboard list (fa-th-large - looked squished) with a smaller…

replace icon on dashboard list (fa-th-large - looked squished) with a smaller version of dashbord icon. This may not be the best way to do the css, so it's a separate commit

public/app/core/components/search/search_results.html

@@ -30,7 +30,7 @@
         </gf-form-switch>
       </div>
       <span class="search-item__icon">
-        <i class="fa fa-th-large"></i>
+        <i class="gicon mini gicon-dashboard-list"></i>
       </span>
       <span class="search-item__body">
         <div class="search-item__body-title">{{::item.title}}</div>

public/sass/base/_icons.scss

@@ -11,6 +11,11 @@
   vertical-align: middle;
 }
 
+.mini {
+  width: 0.8em;
+  height: 0.8em;
+}
+
 .gicon-add-annotation {
   background-image: url('../img/icons_#{$theme-name}_theme/icon_add_annotation.svg');
 }