correct filename of PAR009

Currently PAR009 is writing filename, with the following pattern 20230827_Lutjewad Atmospheric Station-LUTJEWAD_PAR009.nc with follows main.py#L45 fn_start = filename = f"{now_utc.ymd}_{config_dict['global_attrs']['site_name']}-{config_dict['station_code']}_{config_dict['global_attrs']['sensor_name']}"

Empty spaces should be avoided, as they complicate file transfers and other operations

Investigate and resolve.