Datatable Improvements Overview

[jaclarke]

• [x] ❗️Refactor datatable so we can render query results in table format (#275)
• [ ] Keyboard navigation
• [ ] Data copy/export + row selection (see #65)
• [ ] #212
• [ ] Consider removing inline inspector for expanded row, and replace with sidepanel view. Would be more consistent with mobile view, allow more space for field editing, and I think play better with keyboard navigation. (Yury: maybe let's not -- side panels are narrow)
• [ ] Add link properties (#11)
• [x] ❗️Add button to refresh data
• [ ] Filter history (#307)

Columns:

• [x] Re-order columns (#268)
• [x] ❗️Select/hide columns
  • Replaces current 'show subtype fields' toggle
  • Have way to easily select all props/links/subtypes/computeds? (#308)
• [x] Pinned columns (#321)