[FEATURE REQUEST] Addition of Nautical Mile (nm) Unit #1452

Checklist
Please make sure you have performed the following steps before submitting a new feature request, change [ ] to [x] to mark it as done

• I have read the Contributing Guidelines and Scope and Purpose
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Description

Please consider adding the Nautical Mile (nm) unit to the system

This addition would make recording odometer records for boats and some aircraft more useful.

Thank you.

Alex

Acknowledgment

• I acknowledge that LubeLogger is a side project and that development efforts are entirely voluntary. I do not expect the core maintainers to respond to this issue, and I will not hound or chase them regarding this issue or any other issues.