Refine groups list in admin UI

assets/css/civicrm-network-groups-settings.css

@@ -19,3 +19,25 @@
 	background: #fafafa;
 	border: 1px solid #f3f3f3;
 }
+
+.civicrm-network-groups-list li:hover {
+	cursor: ns-resize;
+}
+
+.civicrm-network-groups-list li:before {
+	/* content: "\f156"; */
+	content: "\f333";
+	color: #666;
+	display: inline-block;
+    width: 28px;
+    height: 20px;
+    font-size: 16px;
+    line-height: 1.1;
+    font-family: dashicons;
+    text-decoration: inherit;
+    font-weight: normal;
+    font-style: normal;
+    vertical-align: top;
+    text-align: left;
+    -webkit-font-smoothing: antialiased;
+}