Reorder split names

add dataset_info in dataset metadata

Align more metadata with other repo types (models,spaces) (#4607)

Remove config names as yaml keys (#4367)

Update datasets task tags to align tags with models (#4067)

Fix typo in train split name (#3751)

Update files from the datasets library (from 1.18.0)

Update files from the datasets library (from 1.7.0)

Update files from the datasets library (from 1.3.0)

Update files from the datasets library (from 1.2.0)