Fix style issues pointed out in review

Signed-off-by: Lukas Reschke <lukas@statuscode.ch>

apps/oauth2/appinfo/routes.php

@@ -42,4 +42,4 @@ return [
 			'verb' => 'POST'
 		],
 	],
-];
+];

apps/oauth2/js/setting-admin.js

@@ -1,4 +1,3 @@
-
 $(document).ready(function () {
 
 	$('.show-oauth-credentials').click(function() {