button component - active and focus style defect fix

components/device-mgt/org.wso2.carbon.device.mgt.ui/src/main/resources/jaggeryapps/devicemgt/app/units/cdmf.unit.ui.theme/public/css/custom-desktop.css

@@ -3252,9 +3252,13 @@ a.ast-type-item:hover {
    opacity: 0.5;
 }
 
-.wr-btn:hover {
+.wr-btn:hover,a.wr-btn:hover  {
+    color:#b3e7ff;
 	background-color: #16436D;
 }
+.wr-btn:active,a.wr-btn:active,.wr-btn:focus,a.wr-btn:focus {
+    color:#b3e7ff;
+}
 
 .wr-btn-grp {
     margin-top: 40px;