Updated lang path getting mechanism

[m0stwan1ed]

Defining of localization folder has been updated: Laravel 9 has new lang folder path: '/lang', this causes an exception: 'resources/lang doesn't exists!' during the files creation.

In Laravel 5.0 (also available in newer version) App::langPath() method has been added, which helps to get lang folder absolute path, so there is no need to manually build path to lang folder anymore