Datatable Improvements Overview

[jaclarke]

• Refactor datatable so we can render query results in table format (Feature Request: Tabular results UI for EdgeQL queries #275)
• Keyboard navigation
• Data copy/export + row selection (see Allow text selection in dataview #65)
• Consider reflecting filters and column sorting in url for the data explorer #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.
• Add link properties (show link properties in data viewer #11)
• Add button to refresh data
• Filter history (Data Explorer filter history #307)

Columns:

• Re-order columns (Feature request: Re-order table columns #268)
• Select/hide columns
  • Replaces current 'show subtype fields' toggle
  • Have way to easily select all props/links/subtypes/computeds? (Expensive computed links force loaded in data explorer #308)
• Pinned columns (Feature request: pinned column in database UI view #321)