Add a button to delete datasets

[allisonking]

Is your feature request related to a specific problem?

There should be a button which deletes a dataset.

Describe the solution you'd like

Clicking a trash can button while editing a dataset should delete it. This will need another entry in the dataset slice to call DELETE on the endpoint

Describe alternatives you've considered, if any

A description of any alternative solutions or features you've considered.

Additional context

Blocked by #762 and #768