Make the role append optional

Created MR to be reviewed, please give all the feedback you have to improve it if necessary.

The admin form changes a bit (Gin admin theme):

Review the MR6 on 9.5.8 drupal version. Getting this error:

error: patch failed: src/EventSubscriber/EventSubscriber.php:124
error: src/EventSubscriber/EventSubscriber.php: patch does not apply

Thanks @rodricels for taking the time to make this merge request. I'll take some time to renew this in detail and get back to you with some feedback soon.

Thanks again for your work on this. I think that adding the term heaviest role into the config screen makes things more confusing, so I think we should simplify that toggle. There is a big difference in performance on a lot of transactions depending on the user role, so appending the role should default to being on. Maybe we can change the toggle text to something like:

[] Exclude role information from transaction name
help text: Transaction timings are impacted heavily by the user's role, so we recommend including role information in the transaction name.

In order to keep it simple, I suggest having just two options in Additional Transaction Data:

Slow Transaction Data
User ID
User Roles

When User Role is selected, include two custom parameters, one with all roles, and one with the highest weight role.

I think this will still get the improvements you wanted into the module while keeping the config screen as simple as we can make it.

What do you think?