spod_quick_get_od fails sometimes because fresh CSVs are not always pre-aggregated in the GraphQL api

[e-kotov]

spod_quick_get_od(date = "2024-12-17")

Error in `.data$origin_muni`:
! Column `origin_muni` not found in `.data`.

Because this data does not exist yet on the platform
.

Currently, the available dates are checked against the available CSV files with raw data. Should replace this with a more robust available data check, and a more graceful fail when unavailable date is selected.