PLT-6478 Fixed copyright date on login screen (#6329)

webapp/components/user_settings/manage_languages.jsx

@@ -1,4 +1,4 @@
-// Copyright (c) 2015 Spinpunch, Inc. All Rights Reserved.
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
 // See License.txt for license information.
 
 import SettingItemMax from '../setting_item_max.jsx';