Change system list requirements to allow spaces in the system names

Currently system names can only contain alphanumeric, hyphen, and underscore characters. Spaces can be included in system tags, however, it is the system NAME that is used if a system is assigned to created a swimlane.

This means that system names that should have spaces either have no spaces or underscores.

The fact that it looks a bit "ugly" is a blocker for some users adopting Promapp and I have been asked to add some of the systems as roles instead because it looks nicer (see example attached).

System names should be able to be inputted as they are seen and written in other contexts.

https://help.nintex.com/en-US/promapp/Admin/Systems.htm