Declare settings explicitly, and use generic settings form, update menu
This PR normalizes the settings management:
- declares them in
settings/civimoodle.settings.php(allows settings defaults etc) - uses the Generic Admin setting form (because why not)
- changes the admin setting URL to
admin/setting/moodle(sorry - breaking change - the generic admin form expects this) - changes how the admin setting menu item is added to the menu (less code, easier to do updates later on)
Main motivation for changing this, was that I want to add new settings, and may as well cleanup first.
The form looks roughly the same:
