client: don't dismiss native web notifications programmatically after 5s

client/js/lounge.js

@@ -1041,14 +1041,11 @@ $(function() {
 							icon: "img/logo-64.png",
 							tag: target
 						});
-						notify.onclick = function() {
+						notify.addEventListener("click", function() {
 							window.focus();
 							button.click();
 							this.close();
-						};
-						window.setTimeout(function() {
-							notify.close();
-						}, 5 * 1000);
+						});
 					} catch (exception) {
 						// `new Notification(...)` is not supported and should be silenced.
 					}