Added site count to folder header

src/popup/less/components.less

@@ -187,6 +187,13 @@
             background-color: transparent;
             padding: 10px 10px;
             color: @gray-light;
+            white-space: nowrap;
+            overflow: hidden;
+            text-overflow: ellipsis;
+
+            small {
+                float: right;
+            }
         }
     }