Added keybindings for 'Run', 'Explain', and 'Analyze'.
Added tooltips showing the shortcuts for 'Run', 'Explain', and 'Analyze'.
Added tooltips to reference labels, showing what field contained the reference.
Switch to Results tab on error, and jump to error position if given.
Updated 'Index Scan' icon, and added 'Index Only Scan' icon.
Treat CTEs as referenced subqueries, like they should be.
Reworked addLabel() to use a selection for label lines, so we can correctly update.
Allow 'Output' back into the popup, and split values into multiple lines where appropriate.
Updated 'Index Scan' and 'Nested Loop' icons.
Added 'Result' and 'Function Scan' icons.
Improved discovery of subplan references.
More tweaks to query plan popups.