Island settings

[Eliott79]

Is your feature request related to a problem?

No, it a suggestion

Describe the solution you'd like.

Let plugin's users add or remove rank for /is settings in config file. Like remove trust rank and add Major rank.

Describe alternatives you've considered.

I don't have other alternatives.

Agreements

• [X] I have searched for and ensured there isn't already an open issue regarding this.
• [X] I have ensured the feature I'm requesting isn't already in the latest supported BentoBox build or Addons.

Other

No response