Get Shapefile: Read from Config or Use Internal Dataset

This function retrieves a shapefile based on a path specified in a configuration file. - If a valid path exists in the configuration, the shapefile is read from that location. - If no path is provided, the function defaults to using an internal shapefile (`nuts_shp`). - To improve performance, the shapefile is cached in `app_cache_env$shp`, preventing multiple unnecessary reads during an application session (e.g., when plotting maps).

get_shp_config_or_internal()

Value

An `sf` object representing the geographic data (either from the config path or `nuts_shp`).