Dataset UI: total number of runs in dataset

[leonardmq]

Would be nice to show the total number of runs in the Dataset page. A dataset is generally put together over time with a bunch of synthetic data generation rounds so you generally lose track of the count after a while.

(There is a UI workaround right now to get the count: in the Dataset table, click Select and check all rows, and the UI shows the total selected count.)

In the same idea, showing a basic summary of the dataset in there could be useful - like how many rated vs needing rated, number for each star-rating value, etc.

[scosman]

Nice to have, but v2 since there’s a workaround. Not hard to add, just need a clean UI.