Reorder split names

add dataset_info in dataset metadata

remove dummmy data

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

Eval metadata batch 2 : Health Fact, Jigsaw Toxicity, LIAR, LJ Speech, MSRA NER, Multi News, NCBI Disease, Poem Sentiment (#4336)

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 1.4.0)

Update files from the datasets library (from 1.3.0)

Update files from the datasets library (from 1.2.0)