fix(weather_status): Fix location format for OpenAPI

[provokateurin]

Summary

Previously lat and lon were typed as float but they are always string. I fixed that and also fixed the type hierarchy so now all the endpoints use the same base type for locations.

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[provokateurin]

/backport to stable28

[bigcat88]

did not test, but looking good