The `getDescription(triggerId)` function, documented at:
https://kwaroran.github.io/docs/srp/lua/#getdescriptiontriggerid was
missing from the codebase and has now been added.
# PR Checklist
- [ ] Have you checked if it works normally in all models? *Ignore this
if it doesn't use models.*
- [ o] Have you checked if it works normally in all web, local, and node
hosted versions? If it doesn't, have you blocked it in those versions?
- [ ] Have you added type definitions?
# Description
6d39e5f50f