Implement typical configuration & exclusions settings

Here's the best implementation of Condition Plugins I've found for a settings page: https://git.drupalcode.org/project/advanced_mautic_integration/-/blob/1....

Also see ✨ Use Drupal Conditions API to include / exclude by certain conditions Active for further information on the same topic.

Please note that currently the condition plugins are always affected by ✨ Create an admin route condition plugin or add generic "Current theme" options for admin and default theme Active which leads to wrong results, as the "Current theme" condition is always evaluated with the preselected value!

Automatically closed - issue fixed for 2 weeks with no activity.