Fix issue of STAC_DIR (Backend)
To add a directory of STAC catalogs in the current version, we must add the identical one. Nevertheless, by defining a configuration file, we can define a base directory and append any directory to it.
To add a directory of STAC catalogs in the current version, we must add the identical one. Nevertheless, by defining a configuration file, we can define a base directory and append any directory to it.