Feature Request: %WORLD% variable for messages #979

Checklist

• I've searched the issues and pull requests for similar looking suggestions.
• I've checked the Unreleased section of the changelog for newly added features that sound like my suggestion.

Describe your Suggestion

I get very superstitious about drops and would love a %WORLD% variable so I could track which worlds I receive most of my drops on. Would it be possible to add this as a variable I could reference? I'd be happy with it either being on All Messages or even just Loot.

Reasoning

Feed the superstition