add dataset_info in dataset metadata

Fix language tags in dataset cards (#4826)

Fix titles in dataset cards (#4824)

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)

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)