Expand/collapse functionality for searchbar

h/css/common.scss

@@ -1159,6 +1159,10 @@ h3.stream {
 .visual_search {
 }
 
+.magnify-glass {
+  width: 2.25em;
+}
+
 .VS-search .VS-icon {
   background-repeat:no-repeat;
   background-position:center center;