fix(ui5-radiobutton): focus lost upon text click in IE (#24)

Author: ilhan007

packages/main/src/themes/base/RadioButton.less

@@ -132,6 +132,7 @@ ui5-radiobutton {
 		max-width: 100%;
 		text-overflow: ellipsis;
 		overflow: hidden;
+		pointer-events: none;
 	}
 }