Debugged stuff

esm-collections/disk-access/dkrz_cmip6_cloud.json

 {
   "default_columns":[
-        "project,
+        "project",
         "activity_id",
         "source_id",
         "institution_id",

esm-collections/disk-access/dkrz_era5_disk.json

 {
   "default_columns":[
-        "project,
+        "project",
         "era_id",
         "dataType",
         "level_type",

esm-collections/disk-access/dkrz_palmod2_disk.json

 {
     "default_columns":[
-        "project,
+        "project",
         "source_id",
         "institution_id",
         "experiment_id",
@@ -102,7 +102,7 @@
         },
         {
             "column_name": "format"
-        },
+        }
     ],
     "catalog_file": "/work/ik1017/Catalogs/dkrz_palmod2_disk.csv.gz",
     "description": "This is a ESM-collection for Palmod2 data on DKRZ's disk storage system",