Picker for origin and destination?

**Is your feature request related to a problem? Please describe.**
The idea is to pick 2 locations instead of one like an origin and destination but routing is not needed.

**Describe the solution you'd like**
This is somewhat similar to https://github.com/aliumujib/Nibo but routing is not needed.

The issue names no files, tests, or entry points. Start by reviewing Leku's existing single-location picker and clarify how two locations should be selected and represented without routing; done means the picker supports origin and destination selection with agreed behavior.

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