Add a Description on to User Groups

[kmeilander]

On the user groups, it would be nice if there was a description field with the group to help user managers know what a user group is for. This is especially useful for custom permission logic, where you are setting logic in the code so it's not apparent based on the settings on the group.

This could work similar to Doc Type descriptions in that it could be set under the name, and shown wherever the user group is chosen.

[kmeilander]

I opened a PR for this change. #14988

How this works:

On the User Group Edit screen, there is a field for the description under the User Group Name to allow Users to set the description in the same way that Document Type Descriptions are managed.

Once the description is set, it shows on the cards when choosing the group on a user, so the admin user can get more details around what that User Group is for.

Once a Group is Added to a User, it shows the description along with the group details so other Users can see what this Group is for.