Change API URL to dataset-viewer.huggingface.co?
Follow-up to https://github.com/huggingface/dataset-viewer/issues/2650

Should we do it?
- https://github.com/huggingface/dataset-viewer/issues/2650#issuecomment-2040217875
- https://github.com/huggingface/moon-landing/pull/9520#issuecomment-2040220911

If we change it, we would have to update:
- moon-landing
- datasets
- the docs (hub, datasets, dataset-viewer)
- other written support (blog, observable, notion...)

If so, also change the dev URL: https://datasets-server.us.dev.moon.huggingface.tech.

We should also handle the redirection from the old URL to the new one.
Change API URL to dataset-viewer.huggingface.co?: Follow-up to https://github.com/huggingface/dataset-viewer/issues/2650

Should we do it?
- https://github.com/huggingface/dataset-viewer/issues/2650#issuecomment-2040217875
- https://github.com/huggingface/moon-landing/pull/9520#issuecomment-2040220911

If we change it, we would have to update:
- moon-landing
- datasets
- the docs (hub, datasets, dataset-viewer)
- other written support (blog, observable, notion...)

If so, also change the dev URL: https://datasets-server.us.dev.moon.huggingface.tech.

We should also handle the redirection from the old URL to the new one.