guide: split Comparing Experiments, move Listing content to a new document

[iesahin]

This splits UG: Comparing Experiments page by removing dvc exp list related content to a new page. Adds the new page to the sidebar.

No content changes except the initial sentence in Listing Experiments.

Related #2995

[jorgeorpinel]

Not sure about thi. We'd have 2 pages that are closely related and now you have to navigate some of it on the left nav. May be confusing and the structure isn't clear. Why "compare" before "list" (nav)?

I think we should first try to summarize the current https://dvc.org/doc/user-guide/experiment-management/comparing-experiments significantly to address some of the tasks in #2995.

p.s. and yes I realize this was one idea we had while reviewing the original PR but seeing it now it's not making much sense to me. Idk what we gain from this as it's presented now (no content changes).

[iesahin]

I can push Listing below in the sidebar.

This was the easiest way to shorten the section. We can summarize the content in a cascading PR.

[jorgeorpinel]

We can summarize the content in a cascading PR.

If we're not separating into 2 pages why cascade it though?

[iesahin]

What do you recommend to do?

[jorgeorpinel]

I think we can close this and discuss/address the bullets in #2995.

[iesahin]

Close per your recommendation. We can discuss this in #2995

[jorgeorpinel]

Thanks. Agreed.