SAMSum dataset viewer not working
https://huggingface.co/datasets/samsum

```
Status code:   400
Exception:     ValueError
Message:       Cannot seek streaming HTTP file
``` Currently, only the datasets that can be streamed support the dataset viewer. Maybe @lhoestq @albertvillanova or @mariosasko could give more details about why the dataset cannot be streamed. It looks like the host (https://arxiv.org) doesn't allow HTTP Range requests, which is what we use to stream data.

This can be fix if we host the data ourselves, which is ok since the dataset is under CC BY-NC-ND 4.0
## Dataset viewer issue for '*name of the dataset*'

**Link:** *link to the dataset viewer page*

*short description of the issue*

Am I the one who added this dataset ? Yes-No
