[D8] Mapbox UI

Thank you for applying! Remember to change status, when the project is ready for review, as in this queue Active means Don't review yet the project I am using for this application.

1. config schema is missing, see https://www.drupal.org/docs/8/api/configuration-api/configuration-schema...
2. The module name is mapbox_ui, but the config uses mapbox. That could lead to name clashes with other modules, please use mapbox_ui for the config.

Otherwise looks good to me.

Thanks for your contribution, Hussein!

I updated your account so you can opt into security advisory coverage now.

Here are some recommended readings to help with excellent maintainership:

• Dries' post on Responsible maintainers
• Best practices for creating and maintaining projects
• Maintaining a drupal.org project with Git
• Commit messages - providing history and credit
• Release naming conventions.
• Helping maintainers in the issue queues

You can find lots more contributors chatting on Slack or IRC in #drupal-contribute. So, come hang out and stay involved!

Thanks, also, for your patience with the review process. Anyone is welcome to participate in the review process. Please consider reviewing other projects that are pending review. I encourage you to learn more about that process and join the group of reviewers.

Thanks to the dedicated reviewer(s) as well.