Rename legacy notification so it's less confusing

Signed-off-by: Joas Schilling <coding@schilljs.com>

apps/updatenotification/js/legacy-notification.js

@@ -11,7 +11,7 @@
  */
 
 /**
- * this gets only loaded if an update is available and then shows a temporary notification
+ * This only gets loaded if an update is available and the notifications app is not enabled for the user.
  */
 $(document).ready(function(){
 	var text = t('core', '{version} is available. Get more information on how to update.', {version: oc_updateState.updateVersion}),

apps/updatenotification/lib/AppInfo/Application.php

@@ -63,7 +63,7 @@ class Application extends App {
 			}
 
 			if ($updateChecker->getUpdateState() !== []) {
-				Util::addScript('updatenotification', 'notification');
+				Util::addScript('updatenotification', 'legacy-notification');
 				\OC_Hook::connect('\OCP\Config', 'js', $updateChecker, 'populateJavaScriptVariables');
 			}
 		}